December 2020 Update

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Carles Curto Text: Carles Curto (formerly curator of the Geology Museum, Barcelona) & Jordi Fabre
Assistance from John S. White (former Smithsonian curator) John S. White


USA

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”




Order
Gold (variety electrum)
 

TR16AM3: Very aerial group of lamellar Gold crystals (variety electrum), some of them with very well marked skeletal growths and a little matrix at the back. The specimen comes from a relatively recent find in a known gold zone.
Specimens from this find were analyzed and we will send a copy of the analysis to the buyer.
R.J. Roberts lode, Willow Creek District, Pershing County, Nevada  USA (2015)

Specimen size: 2.9 × 2.5 × 1 cm = 1.14” × 0.98” × 0.39”

With a copy of its analysis.

Weight: 3.8 grams



Gold (variety electrum). Front
Front
Gold (variety electrum). Rear
Rear
Order

MEXICO

Olivenite
Olivenite.
 

TD88AM3: A novelty at Tucson 2020. Group of Olivenite crystals on matrix, one of them clearly dominant and very aerial and sharp, flattened, with very well defined faces and edges and perfect terminations. With good luster and a very deep olive-green color. As on so many other occasions in Milpillas, among the best for the species.
Milpillas Mine, level 992, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (11-12/2019)

Specimen size: 2.2 × 1.4 × 0.8 cm = 0.87” × 0.55” × 0.31”

Main crystal size: 1.1 × 0.3 cm = 0.43” × 0.12”




Order

PORTUGAL

Chalcopyrite with Arsenopyrite and Siderite

Recorded under LED light
 

MR27AM3: Group of large Chalcopyrite crystals with the typical curvatures seen in Panasqueira specimens, very aerial, lustrous, and on matrix. With sharp and lustrous Arsenopyrite crystals and small coatings of lenticular Siderite crystals. As a whole, it is a very high level piece both for its perfection and for the quality of the Chalcopyrite crystals, a species that in this mine does not usually yield very good specimens.
Minas da Panasqueira, Aldeia de So Francisco de Assis, Covilh, Castelo Branco, Cova da Beira, Centro  Portugal

Specimen size: 13.1 × 10.4 × 7.1 cm = 5.16” × 4.09” × 2.80”

Main crystal size: 5 × 3.3 cm = 1.97” × 1.30”




Chalcopyrite with Arsenopyrite and Siderite. Chalcopyrite with Arsenopyrite and Siderite.
Order

FRANCE

Azurite with Malachite after Cuprite
Azurite with Malachite after Cuprite. Front
Front
Azurite with Malachite after Cuprite. Top
Top
 

EK69AM3: Group of Azurite crystals with very sharp crystal forms and a very vivid color, with Malachite pseudomorphs after Cuprite crystals with the dominant forms of octahedron and dodecahedron. A French classic.
Chessy-les-Mines, Les Bois d'Oingt, Villefranche-sur-Sane, Rhne, Auvergne-Rhne-Alpes  France

Specimen size: 5.3 × 3.4 × 3.3 cm = 2.09” × 1.34” × 1.30”

Main crystal size: 1.5 × 1.3 cm = 0.59” × 0.51”

Type locality



Order

EUROPE (excl. Spain, Portugal and France)

Sphalerite with Galena
 

EE67AM3: Druse of complex twinned Sphalerite crystals with sharp crystal forms, lustrous, and yellow in color. Transparent under strong light. On matrix, with cubo-octahedral Galena crystals. The back of the piece has been partially sawn.
Madan mining area, Rhodope Mountains, Smolyan Oblast  Bulgaria

Specimen size: 9.4 × 6.4 × 4 cm = 3.70” × 2.52” × 1.57”

Main crystal size: 1.5 × 1.1 cm = 0.59” × 0.43”




Sphalerite with Galena. Front
Front
Sphalerite with Galena. Light behind
Light behind
Sphalerite with Galena.
Order
Sulphur with Calcite
Sulphur with Calcite. Front
Front
Sulphur with Calcite. Rear
Rear
Sulphur with Calcite.

Recorded under LED light
 

HM87AM3: Sulphur crystals with a dipyramidal habit, very sharp crystal forms, and which retain, despite time, an excellent luster and color. On matrix with globular coatings of small Calcite crystals. A Sicilian classic from an old collection.
Caltanissetta Province, Sicily  Italy

Specimen size: 11.4 × 9.3 × 9.2 cm = 4.49” × 3.66” × 3.62”

Main crystal size: 1.7 × 1.5 cm = 0.67” × 0.59”

Calcite minor fluorescence long & short UV



Order
Aragonite (variety cuprian)
Aragonite (variety cuprian)  

SM99AM3: Fine coralloid growths of Aragonite with stalactitic forms, pale blue due to the copper content. The specimen is from the Francesco S. Stoppani collection (number 0515), whose label we will send to the buyer together with other old labels from the Rosenkranz and N. Stotzel collections. As with many of the specimens in this collection, this one is of high quality for the locality, a classic of Italian mineralogy.
San Giovanni Mine, Punta della Torre, Iglesias, Sud Sardegna Province, Sardinia/Sardegna  Italy

Specimen size: 17.3 × 8.6 × 11 cm = 6.81” × 3.39” × 4.33”

Former collection of Francesco S. Stoppani



Aragonite (variety cuprian). Aragonite (variety cuprian).
Order

MOROCCO

Calcite (variety kanonenspat) with Prehnite
Calcite (variety kanonenspat) with Prehnite.
 

EH26AM3: Group of Calcite crystals with a very sharp pseudohexagonal outline, some of them doubly terminated, completely covered by a second generation of small scalenohedral crystals. On matrix, with centered growths of acicular white Prehnite crystals.
Due to its genetic complexity the specimen has been analyzed and we will send a copy of the analysis to the buyer.
Jebel Masker, Imilchil area, Tounfit, Khnifra Province, Beni Mellal-Khenifra Region  Morocco (2019)

Specimen size: 8.8 × 6.4 × 7.1 cm = 3.46” × 2.52” × 2.80”

Main crystal size: 6.2 × 2.4 cm = 2.44” × 0.94”

With a copy of its analysis.



Order
Marcasite
 

EQ14AM3: Floater aggregate of small Marcasite crystals with the twin law known as "sperkise", very sharp, and with extraordinary luster. This specimen clearly preserves cavities with the geometric shapes of vanished crystals, probably Baryte.
Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Dra-Tafilalet Region  Morocco (2020)

Specimen size: 9.8 × 7.9 × 3.8 cm = 3.86” × 3.11” × 1.50”




Marcasite. Front
Front
Marcasite. Rear
Rear
Order
Vanadinite
Vanadinite. Front
Front
Vanadinite. Side
Side
Vanadinite. Vanadinite.

Recorded under LED light
 

EL96AM3: From a 2019 discovery at a greater depth than usual in the Coud'a area. With polycrystalline groups and parallel growths of Vanadinite crystals with a thick tabular habit, on matrix, many of them doubly terminated and with hopper growths. Very lustrous and with a very vivid and uniform magenta-red color, less intense on the back. High quality.
Coud'a, Mibladen mining district, Mibladen, Midelt, Midelt Province, Dra-Tafilalet Region  Morocco (04-05/2019)

Specimen size: 6.8 × 3.7 × 6.7 cm = 2.68” × 1.46” × 2.64”

Main crystal size: 2.2 × 1.5 cm = 0.87” × 0.59”




Order
Fluorite with Quartz and Pyrite
 

ER50AM3: Druse of crystals with a cubic habit, transparent, with good luster and an intense and uniform green color. Partially covered by small Pyrite crystals and microcrystals of white Quartz. Ancient piece with a different appearance than what is found nowadays in this mine.
El Hamman, Mekns, Mekns Prefecture, Dra-Tafilalet Region  Morocco

Specimen size: 19.3 × 15.8 × 4.1 cm = 7.60” × 6.22” × 1.61”

Main crystal size: 3.4 × 3 cm = 1.34” × 1.18”

Fluorescent long & short UV



Fluorite with Quartz and Pyrite. Fluorite with Quartz and Pyrite.
Order

ASIA (excl. China)

Zunyite with Hematite
Zunyite with Hematite. Front
Front
Zunyite with Hematite. Side
Side
Zunyite with Hematite.

Recorded under LED light
 

MG38AM3: Zunyite, a rare aluminum sorosilicate-fluoride, on matrix. One of the dominant crystals, tetrahedral and beveled by cube faces, with very well defined and smooth faces, a color between reddish and dark brown and with lamellar inclusions of Hematite, which makes it different from the first Zunyites from Iran that came to the world of collecting at Munich 2018.
Qalat-e Payeen salt dome, Bandar Abbas, Central District, Bandar Abbas County, Hormozgan Province  Iran (07/2019)

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

Main crystal size: 1.6 × 1.3 cm = 0.63” × 0.51”




Order


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