Reference Specimens
USA

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Photos by Fabre Minerals. Under Creative Commons license

This page provides a selection of the specimens that have passed through the Fabre Minerals website and, due to their quality,
rarity, or significance as specimens from interesting locations, have been preserved as reference specimens in #MVM


OKLAHOMA


Baryte (variety baryte rose)
Baryte (variety baryte rose). Front
Front
Baryte (variety baryte rose). Rear
Rear
 

HF86AM2: Complete floater group of tabular Baryte crystals with sand inclusions (variety baryte rose). An excellent USA classic of which nowadays you don't see many good specimens.
Slaughterville, Cleveland County, Oklahoma  USA

Specimen size: 8.5 × 8.4 × 5.8 cm = 3.35” × 3.31” × 2.28”

Main crystal size: 5.2 × 4.8 cm = 2.05” × 1.89”

Baryte (variety barite rose)
 

HB67AM5: Complete floater group of tabular Baryte crystal growths with sand inclusions (variety baryte rose). An excellent USA classic which is rarely seen anymore nowadays.
Slaughterville, Cleveland County, Oklahoma  USA

Specimen size: 12.9 × 11 × 8 cm = 5.08” × 4.33” × 3.15”

Baryte (variety barite rose). Front
Front
Baryte (variety barite rose). Rear
Rear
Gypsum (sand-filled)
Gypsum (sand-filled).

Fluorescent light (daylight)
 

TC2110TRF: Group of very sharp Gypsum crystals with good luster and a reddish color, totally filled with sand inclusions. A geological curiousity.
Great Salt Plains, Jet, Alfalfa County, Oklahoma  USA

Specimen size: 8.6 × 7.8 × 6.3 cm = 3.39” × 3.07” × 2.48”

Main crystal size: 5.3 × 4.6 cm = 2.09” × 1.81”

Chalcopyrite with Sphalerite and Dolomite
 

VM56Z4: Very sharp sphenoidal (pseudotetrahedral) Chalcopyrite crystals on black Sphalerite crystals. They are on a matrix of Dolomite showing the typical saddle-like shape. A very characteristic American classic.
Picher Field, Tri-State District, Ottawa County, Oklahoma  USA

Specimen size: 11.4 × 8.6 × 4.2 cm = 4.49” × 3.39” × 1.65”

Main crystal size: 3.2 × 2.5 cm = 1.26” × 0.98”

Former collection of A. Mayor
Chalcopyrite with Sphalerite and Dolomite. Chalcopyrite with Sphalerite and Dolomite.

PENNSYLVANIA


Chalcopyrite with Magnetite
Chalcopyrite with Magnetite. Chalcopyrite with Magnetite.
 

AF11AM3: Group of disphenoidal crystals (pseudotetrahedral) of Chalcopyrite, with sharp crystal forms. On a Magnetite matrix with octahedral crystals of Magnetite.
French Creek Mines, St. Peters, Warwick Township, Chester County, Pennsylvania  USA

Specimen size: 4.4 × 3.2 × 2.3 cm = 1.73” × 1.26” × 0.91”

Main crystal size: 1.2 × 0.7 cm = 0.47” × 0.28”

Chalcopyrite with Pyrite
 

EMT27ASN1: A classic example of American mineralogy. Very bright skeletal and hoppered crystals of Chalcopyrite with a vivid and intense golden color, slightly iridescent with very marked triangular shapes, accompanied by small Pyrite crystals.
A true 'oldie' from mines that operated from the first half of the 18th century until the mid-20th century, and from which specimens were recovered from their waste piles until 1989, when collection was prohibited.
French Creek Mines, St. Peters, Warwick Township, Chester County, Pennsylvania  USA

Specimen size: 6.6 × 6.4 × 4.2 cm = 2.60” × 2.52” × 1.65”

Main crystal size: 1.8 × 1.2 cm = 0.71” × 0.47”


Copper
Copper. Front
Front
Copper. Rear
Rear

Fluorescent light (daylight)
Copper
 

SV3180TPT: These Hamiltonban coppers are not very attractive, but of remarkable size and very difficult to get. A historical part of the US mining heritage.
Blue Ridge Summit, Hamiltonban Township, Adams County, Pennsylvania  USA

Specimen size: 7.5 × 6.9 × 1.6 cm = 2.95” × 2.72” × 0.63”

Analcime with Fluorapophyllite-(K)
 

TD86Q6: White trapezohedral crystals. They are bright, have very well defined faces and edges and are partially coated by small crystals of Fluorapophyllite-(K) The sample is of excellent quality for the locality, a classic for American zeolites.
Cornwall Mines, Cornwall Borough, Lebanon County, Pennsylvania  USA

Specimen size: 9.9 × 7.1 × 4.2 cm = 3.90” × 2.80” × 1.65”

Main crystal size: 1 × 1 cm = 0.39” × 0.39”

Analcime with Fluorapophyllite-(K).
Analcime with Fluorapophyllite-(K).

SOUTH DAKOTA


Calcite replaced by sand
Calcite replaced by sand. Front
Front
Calcite replaced by sand. Rear
Rear

Fluorescent light (daylight)
 

TPM76AO0: Group of crystals, with one of them clearly dominant and all of them doubly terminated, totally occupied by inclusions of sand. They are formed by a prism with curved edges and a poorly defined terminal rhombohedron. An American classic which it is currently very difficult to obtain in good specimens as the area in which they were found has been declared a National Park.
Rattlesnake Butte, Jackson County, South Dakota  USA

Specimen size: 9.3 × 6.7 × 4.5 cm = 3.66” × 2.64” × 1.77”

Main crystal size: 7.6 × 3 cm = 2.99” × 1.18”

sand after Calcite
 

MT60AF1: Two doubly terminated crystals, formed by a prism with curved edges and a poorly defined terminal rhombohedron. The crystals are completely filled by sand inclusions. An American classic that is currently difficult to obtain in good samples because the area where they are found has been declared a National Park.
Rattlesnake Butte, Jackson County, South Dakota  USA (± 1990)

Specimen size: 10.9 × 4.9 × 4.7 cm = 4.29” × 1.93” × 1.85”

Main crystal size: 9 × 3.3 cm = 3.54” × 1.30”

sand after Calcite. Front
Front
sand after Calcite. Rear
Rear
sand after Calcite. Side
Side

TENNESSEE


Fluorite with Galena
Fluorite with Galena. Front
Front
Fluorite with Galena. Side
Side
 

MT67X6: Cubic crystal of Fluorite with polycrystalline faces and small Galena crystals on their surfaces. The crystal is translucent and bright, has a clear lilac color and it is on a Galena matrix.
Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee  USA

Specimen size: 7.5 × 7.3 × 7.5 cm = 2.95” × 2.87” × 2.95”

Fluorescent long & short UV

Former Jan Buma collection. Number 970625
Fluorite with Dolomite

Fluorescent light (daylight)
Fluorite with Dolomite
 

XM290TFG: Group of cubic Fluorite crystals, interpenetrating, with good luster and a deeper bluish color towards the edges of the crystals, on a limestone matrix covered by whitish and greyish rhombohedral Dolomite crystals.
The specimen comes from the collection of Miguel David Martínez Pérez (number 804) whose label we will send to the buyer.
Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee  USA

Specimen size: 9.7 × 6.2 × 3.6 cm = 3.82” × 2.44” × 1.42”

Main crystal size: 2.5 × 2.5 cm = 0.98” × 0.98”

Minor fluorescence long & short UV

Former collection of Miguel David Martínez
Fluorite with Dolomite.
Fluorite with Baryte and Sphalerite
Fluorite with Baryte and Sphalerite. Front
Front
Fluorite with Baryte and Sphalerite. Side
Side
 

GC88AK6: Group of transparent Fluorite crystals, with polycrystalline growths on their faces, partially covered by an aggregate of small yellowish Baryte crystals, on Sphalerite matrix. An American classic.
The specimen is from the Casado Margolles collection (reg. FRM 147) whose label we will send to the buyer.
Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee  USA

Specimen size: 12.5 × 7.2 × 7.8 cm = 4.92” × 2.83” × 3.07”

Main crystal size: 2.2 × 2.1 cm = 0.87” × 0.83”

Minor fluorescence long & short UV

Former collection of Casado Margolles
Fluorite with Chalcopyrite and Calcite
 

MAE73CD3: Floater group formed by cubic Fluorite crystals perfectly sharp and interpenetrated with each other, with marked polycrystalline growths on the faces of the crystals, more intense lilac zoning towards the vertices and coated by a multitude of small Chalcopyrite crystals, which are larger on the back of the piece, where Calcite crystals can be seen too.
The piece is not perfect, with several corners being damaged or scratched, but still...
Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee  USA

Specimen size: 19.5 × 16.5 × 5.6 cm = 7.68” × 6.50” × 2.20”

Main crystal size: 6.9 × 6.5 cm = 2.72” × 2.56”


Recorded under neon light
Calcite (twinned) doubly terminated
Calcite (twinned) doubly terminated. Front
Front
Calcite (twinned) doubly terminated. Rear
Rear

Fluorescent light (daylight)
 

NTT89AQ1: Floater group of scalenohedral Calcite crystals in parallel growth, twinned and doubly terminated with one of them clearly dominant. Translucent, with very bright luster and intense color. An American classic.
The specimen comes from the collection of Miguel David Martínez Pérez.
Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee  USA

Specimen size: 11.6 × 5.7 × 4.8 cm = 4.57” × 2.24” × 1.89”

Former collection of Miguel David Martínez
Sphalerite on Quartz
 

TM14AN1: Sharp Sphalerite crystal, with well defined crystal forms and a very visible twin plane in front, with bright luster and vivid red internal reflections, on a matrix of small Quartz crystals.
We will ship the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label, which shows that it was previously in the Melanson collection.
Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee  USA

Specimen size: 2.2 × 1.8 × 1.4 cm = 0.87” × 0.71” × 0.55”

Main crystal size: 1.7 × 1.6 cm = 0.67” × 0.63”

Former collection of Bob Noble
Sphalerite on Quartz. Sphalerite on Quartz.
Sphalerite with Dolomite
Sphalerite with Dolomite. Sphalerite with Dolomite.
 

MP36T0: Well individualized crystals with very well defined faces and edges, very bright, and with intense deep red reflections. On matrix, with white rhombohedral crystals of Dolomite.
Gordonsville Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee  USA

Specimen size: 5.4 × 5.4 × 2.4 cm = 2.13” × 2.13” × 0.94”

Main crystal size: 1.9 × 1.6 cm = 0.75” × 0.63”

Sphalerite with Calcite
 

AA66AG9: Druse of complex Sphalerite crystals, very rich with faces, clearly twinned and with very well defined forms. They are translucent, very bright, have a very deep color and are on a rocky matrix with small scalenohedral Calcite crystals. An American classic, typical of past samples from the Elmwood mine.
Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee  USA

Specimen size: 7.9 × 7.4 × 4.4 cm = 3.11” × 2.91” × 1.73”

Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”

Calcite fluorescent short UV
Sphalerite with Calcite. Sphalerite with Calcite.
Sphalerite with Calcite and Dolomite
Sphalerite with Calcite and Dolomite. Sphalerite with Calcite and Dolomite.
Sphalerite with Calcite and Dolomite.
 

CF86AD3: Druse of complex Sphalerite crystals that are very rich in faces and have very well defined forms. They are translucent, very bright and have a very deep color. On a rocky matrix with small rhombohedral Dolomite crystals. An American classic.
Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee  USA

Specimen size: 9.7 × 7.2 × 5.2 cm = 3.82” × 2.83” × 2.05”

Main crystal size: 1.3 × 1.2 cm = 0.51” × 0.47”

Calcite fluorescent short UV
Sphalerite with Quartz
 

MY6R8: Sphalerite crystals more individualized than usual for the locality. They have a very well defined tetrahedral habit and are twinned, translucent and very bright, being implanted on a matrix coated by Quartz with small white crystals of Dolomite and yellow crystals of Calcite. A USA classic.
Gordonsville Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee  USA

Specimen size: 11.4 × 7.2 × 5.7 cm = 4.49” × 2.83” × 2.24”

Main crystal size: 1.9 × 1.3 cm = 0.75” × 0.51”

Sphalerite with Quartz. Sphalerite with Quartz.
Sphalerite with Dolomite and Calcite
Sphalerite with Dolomite and Calcite. Sphalerite with Dolomite and Calcite.
 

ET90L1: Very complex Sphalerite crystal groups. Very sharp faces and edges, some of them with interesting curvatures. Crystals are translucent, with a dark honey color, on rhombohedral white Dolomite and scalenohedral yellowish Calcite crystals. Elmwood is one of the great classics of the USA for Calcite crystals, but also it has provided excellent Sphalerite specimens. So, as we said, a great one.
Elmwood Mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith County, Tennessee  USA

Specimen size: 12 × 10.5 × 4.7 cm = 4.72” × 4.13” × 1.85”

Main crystal size: 4.3 × 2.8 cm = 1.69” × 1.10”

Calcite minor fluorescence long & short UV

UTAH


Smoky Quartz with Feldspar
 

TF71K4: Group of two flat, transparent and doubly terminated Quartz crystals on a matrix of Feldspar crystals, probably Orthoclase. The locality is uncommon.
The matrix has, on its backside, a fissure recemented by Quartz but also repaired (or consolidated). This circumstance is noted on the label from the Bob Jones collection, that we'll send with the specimen.
Mineral Mountains area, Beaver County, Utah  USA

Specimen size: 15.5 × 10 × 6 cm = 6.10” × 3.94” × 2.36”

Smoky Quartz with Feldspar. Front
Front
Smoky Quartz with Feldspar. Side
Side
Smoky Quartz with Feldspar. Top
Top
Beryl (variety red beryl)
Beryl (variety red beryl). Beryl (variety red beryl).
 

NC87AI3: Single doubly terminated Beryl (variety red beryl) crystal with very well defined faces and edges and perfect terminal faces. It is translucent and has an intense color. An American classic of high quality
The sample is from the Ignacio Hernández collection (num. 26) whose original label we’ll send to the buyer.
Ruby Violet Claims, Wah Wah Mountains, Beaver County, Utah  USA

Specimen size: 4.4 × 4.1 × 2.6 cm = 1.73” × 1.61” × 1.02”

Main crystal size: 1.4 × 0.4 cm = 0.55” × 0.16”

Former collection of Ignacio Hernández
Azurite
Azurite  

MY87AM3: Druse of lenticular Azurite crystals with very well defined faces and edges, very lustrous, with a vivid color and with small Malachite concretions. An excellent American classic.
The specimen comes from the Ignacio Gaspar collection (number AZU-11), whose label we will send to the buyer.
La Sal Mountains, La Sal District, Grand County, Utah  USA

Specimen size: 5 × 3.5 × 3.5 cm = 1.97” × 1.38” × 1.38”

Former collection of Ignacio Gaspar
Azurite. Front
Front
Azurite. Top
Top
Azurite with Malachite
Azurite with Malachite. Front
Front
Azurite with Malachite. Rear
Rear
 

TA67Q6: A floater, a nodular aggregate of crystals that have very well defined faces and edges, with an excellent luster and an extraordinary blue color, with small nodules of Malachite. The quality is excellent for the locality.
La Sal Mountains, La Sal District, Grand County, Utah  USA

Specimen size: 6.2 × 4.6 × 3.5 cm = 2.44” × 1.81” × 1.38”

Azurite with Malachite
 

TZ27AM9: Very ‘architectural’ spheroidal growths of lenticular Azurite crystals, with good luster and a vivid color, on a matrix partially covered by Malachite.
La Sal Mountains, La Sal District, Grand County, Utah  USA

Specimen size: 6.9 × 3.1 × 2 cm = 2.72” × 1.22” × 0.79”

Azurite with Malachite. Azurite with Malachite.
Bixbyite
Bixbyite. Bixbyite.
 

TD27AN2: Twinned Bixbyite crystal with very sharp twin shapes and an intense luster. A classic of American mineralogy. With a tiny bit of rhyolite matrix.
We will ship the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label.
Solar Wind claim, Thomas Range, Juab County, Utah  USA

Specimen size: 1.1 × 1 × 0.8 cm = 0.43” × 0.39” × 0.31”

Former collection of Bob Noble
Bixbyite with Topaz
 

ME46AE9: Aggregate, on a rocky matrix, of very transparent and bright Topaz crystals with very well defined cubo-octahedral Bixbyite crystals with a rare laminar shape. Small crystals of Hematite coat some faces of the Bixbyite crystals. An excellent thumbnail, very esthetic.
Thomas Range, Juab County, Utah  USA

Specimen size: 2.2 × 1.9 × 1.6 cm = 0.87” × 0.75” × 0.63”

Main crystal size: 0.4 × 0.3 cm = 0.16” × 0.12”

Bixbyite with Topaz.
Bixbyite with Topaz
Bixbyite with Topaz. Bixbyite with Topaz.
 

TF66AN1: Bixbyite crystals of cubic habit with lustrous polycrystalline growths and sharp crystal forms, implanted on a transparent Topaz crystal.
The specimen comes from the collection of José Luís Vallecillo, a collector in Madrid.
Thomas Range, Juab County, Utah  USA

Specimen size: 3.2 × 1.1 × 1 cm = 1.26” × 0.43” × 0.39”

Main crystal size: 0.7 × 0,5 cm = 0.28” × 0.00”

Former collection of José Luis Vallecillo
Bixbyite with Topaz, Fluorite and Pseudobrookite

Fluorescent light (daylight)
 

BFG56AO6: Cuboctahedral crystal of Bixbyite of good size with very sharp crystal forms, with very bright luster, on a matrix of volcanic rock. With coatings of small light purple Fluorite crystals, transparent Topaz crystals and a very sharp Pseudobrookite crystal with excellent terminations.
The specimen comes from an important European collection and was sold by the well-known Dr. Wilke.
Thomas Range, Juab County, Utah  USA

Specimen size: 12.4 × 8.1 × 5.9 cm = 4.88” × 3.19” × 2.32”

Main crystal size: 1.1 × 0.9 cm = 0.43” × 0.35”

Bixbyite with Topaz, Fluorite and Pseudobrookite. Front / Photo: Joaquim Callén
Front / Photo: Joaquim Callén
Bixbyite with Topaz, Fluorite and Pseudobrookite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
Bixbyite with Topaz, Fluorite and Pseudobrookite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
Bixbyite with Topaz, Fluorite and Pseudobrookite. Detail / Photo: Joaquim Callén
Detail / Photo: Joaquim Callén
Fluorite
Fluorite. Fluorite.
 

NB86AI7: Druse of cubic and very sharp Fluorite crystals that are transparent, bright and have a color change from pale lilac to deepest violet. It’s important to note that Fluorite is a rare species at this locality, very well-known for classical samples of Topaz, Bixbyite, red Beryl and Pseudobrookite.
The sample is from the Raúl Sanabria collection whose label we’ll send to the buyer.
Topaz Mountain, Thomas Range, Juab County, Utah  USA (06/2017)

Specimen size: 7.8 × 7 × 3.4 cm = 3.07” × 2.76” × 1.34”

Main crystal size: 0.2 × 0.2 cm = 0.08” × 0.08”

Minor fluorescence short UV

Former collection of Raúl Sanabria
Pseudobrookite on Quartz
 

MB14AN0: Centered groups, on matrix with Quartz, of fine and lustrous acicular crystals of Pseudobrookite.
We will ship the specimen, which comes from a classic American locality for the species, in its original Perky box from the Robert J. Noble collection, which also contains the label.
Solar Wind claim, Thomas Range, Juab County, Utah  USA

Specimen size: 2.9 × 2.4 × 2 cm = 1.14” × 0.94” × 0.79”

Main crystal size: 0.4 × 0.1 cm = 0.16” × 0.04”

Former collection of Bob Noble
Pseudobrookite on Quartz. Pseudobrookite on Quartz.
Pseudobrookite on Quartz.
Pseudobrookite
Pseudobrookite. Pseudobrookite.
 

MA13AF2: Very elongated Pseudobrookite crystals with good terminations. They are bright, very well defined and are on a rhyolite matrix. An excellent miniature of a very well known American classic.
Thomas Range, Juab County, Utah  USA

Specimen size: 3.5 × 3.4 × 2.7 cm = 1.38” × 1.34” × 1.06”

Main crystal size: 0.7 × 0.1 cm = 0.28” × 0.04”

Topaz
 

MV13AM7: An isolated crystal of Topaz, very rich in crystal forms and with excellent terminations, with great luster and an intense color, rich in inclusions in the prism and very transparent and brilliant in its upper part.
We will ship the specimen in its original Perky box from the Robert J. (Bob) Noble collection, which also contains the label, indicating that it was in the Sullivan collection.
Thomas Range, Juab County, Utah  USA

Specimen size: 2.1 × 1.2 × 0.8 cm = 0.83” × 0.47” × 0.31”

Former collection of Bob Noble
Topaz. Topaz.
Topaz with Bixbyte
Topaz with Bixbyte. Topaz with Bixbyte.
 

TE14AJ1: Group of very sharp topaz crystals on a rhyolite matrix. They have very well defined faces and edges, are bright and transparent with inclusions, and are with two very sharp cubic Bixbyite crystals.
We will send the sample in its original Perkin’s box from the R.J. Noble collection, also containing the collection label.
Thomas Range, Juab County, Utah  USA

Specimen size: 2.4 × 2.3 × 1.9 cm = 0.94” × 0.91” × 0.75”

Main crystal size: 2 × 1 cm = 0.79” × 0.39”

Former collection of Bob Noble
Topaz
 

TA96E0: Within a pocket in the typical riolite matrix there is this very luminous and upright Topaz. Small crystals of Quartz and Bixbyite accompany it. All of it is very brilliant and bright.
Little Round Top, Thomas Range, Juab County, Utah  USA (11/2003)

Specimen size: 8 × 4.5 × 3.5 cm = 3.15” × 1.77” × 1.38”

Main crystal size: 1.2 × 1 × 0.6 cm = 0.47” × 0.39” × 0.24”

Minor fluorescence long & short UV
Topaz.
Topaz.
Topaz
Topaz. Topaz.
 

EG86AG0: A very fine crystal on a rhyolite matrix. It is very sharp, with very well defined faces and edges, an excellent luster and very transparent.
Thomas Range, Juab County, Utah  USA (06/2017)

Specimen size: 8.5 × 6.7 × 4.4 cm = 3.35” × 2.64” × 1.73”

Main crystal size: 1.6 × 0.9 cm = 0.63” × 0.35”

Topaz with Quartz
Topaz with Quartz  

EF91AI8: Two Topaz crystals on a rhyolite matrix, one of them clearly dominant. They have very well defined faces and edges and are transparent, very bright and with an intense color.
The sample is from the Raúl Sanabria collection whose label we will send to the buyer.
Topaz Mountain, Thomas Range, Juab County, Utah  USA

Specimen size: 10.8 × 7.8 × 4.3 cm = 4.25” × 3.07” × 1.69”

Main crystal size: 3.1 × 1.5 cm = 1.22” × 0.59”

Former collection of Raúl Sanabria
Topaz with Quartz. Topaz with Quartz.
Rhodochrosite
Rhodochrosite. Rhodochrosite.

Fluorescent light (daylight)
 

EPF93AQ1: Druse of rhombohedral Rhodochrosite crystals with well-developed crystal forms, of very good size and definition for the locality (which is extraordinarily unusual), lustrous and pale pink.
The specimen is from the collection of Dr. Collin Kaeder.
Burgin Mine, Tintic District, East Tintic Mountains, Juab County, Utah  USA

Specimen size: 6.4 × 5.5 × 3.7 cm = 2.52” × 2.17” × 1.46”

Main crystal size: 1.3 × 1.1 cm = 0.51” × 0.43”

Former collection of Dr. Collin Kaeder
Fluorite with Quartz
 

TC56N0: Group of cuboctahedral crystals on a base of massive Quartz and coated by a thin layer of microcrystalline Quartz. The sample comes from an American state where Fluorite is very scarce.
Deer Trail Mine, Cottonwood Creek, Baldy Peak (Mount Baldy), Tushar Mountains, Marysvale, Mount Baldy District, Piute County, Utah  USA (1982)

Specimen size: 7.3 × 5.9 × 2.8 cm = 2.87” × 2.32” × 1.10”

Main crystal size: 1.7 × 1.6 cm = 0.67” × 0.63”

Fluorescent long & short UV
Fluorite with Quartz.
Tetrahedrite
Tetrahedrite. Tetrahedrite.
 

TF27AL4: Group of very sharp Tetrahedrite crystals with well defined interpenetration twins.
The specimen, from a locality little known for the species, comes from the Robert J. Noble collection and we will deliver it in its original Perky box, which also contains the label.
Daly-Judge Mine, Wasatch Mountains, Park City District, Summit County, Utah  USA

Specimen size: 2.9 × 2.6 × 2.1 cm = 1.14” × 1.02” × 0.83”

Main crystal size: 1.5 × 1.4 cm = 0.59” × 0.55”

Former collection of Bob Noble
Cuprian Adamite
 

TN46L7: Groups of divergent and very delicate cuprian Adamite crystals on a Limonite matrix. Color varies between greenish yellow to light green. One of the groups, adjacent to a small fissure, has been reinforced with glue. A classic locality from which it is not easy to see samples in the market.
Gold Hill Mine, Gold Hill, Gold Hill District, Tooele County, Utah  USA

Specimen size: 4.4 × 3.7 × 3.3 cm = 1.73” × 1.46” × 1.30”

Main crystal size: 0.2 × 0.1 cm = 0.08” × 0.04”

Fluorescent long & short UV
Cuprian Adamite. Cuprian Adamite.
Austinite
Austinite. Austinite.
Austinite  

MR37Z0: Aggregates of small spheroidal growths of Austinite crystals with an ivory-white color, on a Goethite matrix. The sample, from the type locality for the species and of a better quality than usual for the mine, is from the Al Ordway collection, whose label we will send to the buyer.
Gold Hill Mine, Gold Hill, Gold Hill District, Tooele County, Utah  USA

Specimen size: 6.5 × 3.9 × 3 cm = 2.56” × 1.54” × 1.18”

Fluorescent long & short UV

Type locality

VERMONT


Rutile with chlorite
Rutile with chlorite  

TD89Y3: Multiple twin of very sharp prismatic crystals. They are red, have an intense luster and are on a chloritic matrix. The sample is of great quality for the locality, relatively unknown for most collectors.
The piece is from the Eric Greene collection, whose label we’ll send to the buyer.
Davis Farm, Bethel, Windsor County, Vermont  USA

Specimen size: 6.5 × 5 × 3.8 cm = 2.56” × 1.97” × 1.50”

Main crystal size: 2 × 0.5 cm = 0.79” × 0.20”

Rutile with chlorite. Rutile with chlorite.

VIRGINIA


Hydroxyapophyllite-(K)
Hydroxyapophyllite-(K). Hydroxyapophyllite-(K).
 

TRM64AN7: Floater group of crystals with a thick tabular habit, very sharp, between translucent and transparent and with geometric color zoning.
We will ship the specimen in its original Perky box from the Robert J. Noble collection, which also contains the label, which shows that it was previously in the Melanson collection.
Fairfax Quarry, Centreville, Fairfax County, Virginia  USA

Specimen size: 2.4 × 1.8 × 1.2 cm = 0.94” × 0.71” × 0.47”

Main crystal size: 1.4 × 1.3 cm = 0.55” × 0.51”

Former collection of Bob Noble

WASHINGTON


Quartz (variety amethyst)
 

EE89AL3: Group of Quartz crystals (variety amethyst) transparent and bright. The color is selectively distributed, with the prism faces being practically colorless, slightly reddish colors on the pyramidal faces, and intense violet concentrated mainly around the terminal edges. The specimen comes from a classic American locality.
North Bend, King County, Washington  USA

Specimen size: 7.8 × 6.1 × 4.6 cm = 3.07” × 2.40” × 1.81”

Main crystal size: 4.7 × 2.4 cm = 1.85” × 0.94”

Quartz (variety amethyst). Front
Front
Quartz (variety amethyst). Side
Side
Quartz (variety amethyst). Top
Top
Grossular with Prehnite
Grossular with Prehnite. Grossular with Prehnite.
Grossular with Prehnite  

TK1V2: Parallel growths of dodecahedral crystals with a deep honey color, bright and transparent. The color is darker than usual due to the size of the crystals which are unusually large for the locality, one of the great worldwide classics for the species.
The sample was in the collection of John Lindell, whose label we’ll send to the buyer.
"Mud Bunny" pocket, Vesper Peak, Sultan Basin, Sultan District, Snohomish County, Washington  USA (1981)

Specimen size: 8.7 × 6.5 × 5 cm = 3.43” × 2.56” × 1.97”

Main crystal size: 2.1 × 1.4 cm = 0.83” × 0.55”


WISCONSIN


Chalcocite
 

AM96S9: Good sample, very representative of the material from the Flambeau Mine, a classic for the species. The crystals, on matrix, are sharp and have very well defined faces and edges, showing the metallic bluing characteristic of the samples from this mine.
Flambeau Mine, 1000 level, Ladysmith, Rusk County, Wisconsin  USA (1994)

Specimen size: 6.3 × 5.4 × 3.8 cm = 2.48” × 2.13” × 1.50”

Main crystal size: 1.1 × 1 cm = 0.43” × 0.39”

Former collection of Josep Amigó (Silvane)
Chalcocite. Chalcocite.

WYOMING


Baryte
Baryte. Baryte.
 

TF46AM5: Group of tabular crystals very rich in crystal forms, transparent, lustrous and with a vivid and uniform sky-blue color. The specimen is from a locality from which few quality specimens are known.
Shirley Basin, Medicine Bow, Shirley Basin District, Carbon County, Wyoming  USA

Specimen size: 5.4 × 4.4 × 3.4 cm = 2.13” × 1.73” × 1.34”

Main crystal size: 2.1 × 1.5 cm = 0.83” × 0.59”



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