Mineral specimens search results


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TLB86AP3: Orthoclase after Leucite (variety pseudoleucite)
Floater group of Leucite crystals pseudomorphed by Orthoclase, maintaining the very well defined original trapezohedron forms, and less corroded than is usual in such specimens.
Loučná pod Klínovcem, Chomutov District, Ústí nad Labem Region  Czech Republic
Specimen size: 4.3 × 4.2 × 4.1 cm = 1.69” × 1.65” × 1.61”
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NBF76AO5: Orthoclase twinned
Orthoclase crystal with very sharp faces and edges and a very well defined double Baveno-Manebach twin. The specimen comes from the collection of Santiago Jiménez who, especially in the 1980s and '90s, put together an excellent collection with a very good representation of the mineralogy of northern Spain.
Bustarviejo, Comarca Sierra Norte, Community of Madrid  Spain
Specimen size: 7.6 × 3.3 × 2.8 cm = 2.99” × 1.30” × 1.10”
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NM58M9: Orthoclase with Albite and Quartz
The pink crystals of Orthoclase are small, very well defined, and have epigenetic growths of Albite. The matrix is also very rich in Albite and has Quartz crystals. The piece is from a well known locality but which has yielded few significant specimens.
La Batllòria, Sant Celoni, Comarca Vallès Oriental, Barcelona, Catalonia / Catalunya  Spain
Specimen size: 6.6 × 5.3 × 3.3 cm = 2.60” × 2.09” × 1.30”
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JFD21AN6: Orthoclase with Quartz (variety smoky)
Another proof of Lluís Daunis's good work as a field collector. This time with a specimen from the Sierra de Madrid with very clean and 'fresh' Orthoclase crystals and with Quartz crystals (smoky variety), well separated and quite perpendicular to the Orthoclase crystal plate. It should be noted that I have it listed as Orthoclase and not Microcline as per personal communication from the Geological and Mining Institute of Spain, in Madrid.
(La Cabrera pluton), La Cabrera, Comarca Sierra Norte, Community of Madrid  Spain
Specimen size: 10.4 × 9.3 × 3 cm = 4.09” × 3.66” × 1.18”

Main crystal size: 2 × 0.9 cm = 0.79” × 0.35”
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DV96AH2: Orthoclase with Quartz (variety smoky)
Polycrystalline growths of Orthoclase crystals with very well defined faces and edges. They are very bright and are partially coating a Quartz crystal.
The Daunis collection was, in the 70’s and the 80’s, a reference for the local prospectors of the Barcelona area.
(La Cabrera pluton), La Cabrera, Comarca Sierra Norte, Community of Madrid  Spain (±1970)
Specimen size: 8.9 × 8.8 × 5.3 cm = 3.50” × 3.46” × 2.09”
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2M12: Orthoclase, Albite, Stilbite-Ca, Quartz
The Strzegom granite quarries are a classic locality for pegmatite minerals. In this case, creamy white Orthoclase crystals are seen on a matrix of bright snowy white Albite crystals. These are accompanied by very dark Quartz crystals (smoky variety) and light brown Stilbita-Ca crystals, making the whole an attractive combination.
Strzegom, Strzegom-Sobótka Massif, Świdnica District, Lower Silesia  Poland
Specimen size: 15.3 × 12.2 × 3.2 cm = 6.02” × 4.80” × 1.26”

Main crystal size: 3.6 × 3.0 cm = 1.42” × 1.18”
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10TL57: Orthoserpierite
Bluish green crystalline aggregates of Orthoserpierite, a hydrated calcium, copper and zinc sulphate that is a member of the Devilline Group.
Copper Creek, Galiuro Mountains, Bunker Hill District (Copper Creek District), Pinal County, Arizona  USA (±1995)
Specimen size: 6.2 × 3.8 × 1.2 cm = 2.44” × 1.50” × 0.47”
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10TH7: Orthoserpierite
Bluish green crystalline aggregates of Orthoserpierite, a hydrated calcium, copper and zinc sulphate that is a member of the Devilline Group.
Copper Creek, Galiuro Mountains, Bunker Hill District (Copper Creek District), Pinal County, Arizona  USA (±1995)
Specimen size: 4.1 × 3.5 × 1.8 cm = 1.61” × 1.38” × 0.71”
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10TA7: Orthoserpierite
Bluish green crystalline aggregates of Orthoserpierite, a hydrated calcium, copper and zinc sulphate that is a member of the Devilline Group.
Copper Creek, Galiuro Mountains, Bunker Hill District (Copper Creek District), Pinal County, Arizona  USA (±1995)
Specimen size: 6.7 × 4.6 × 1.5 cm = 2.64” × 1.81” × 0.59”
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EFM14AO1: Orthoserpierite
Centered aggregates on matrix of acicular Orthoserpierite crystals, with bright luster and a bluish green color. The specimen, a rare hydrated calcium, copper and zinc sulfate, is from the type locality for the species and comes from the collection of Alain Martaud, whose label we will send to the buyer.
Chessy-les-Mines, Les Bois d'Oingt, Villefranche-sur-Saône, Rhône, Auvergne-Rhône-Alpes  France
Specimen size: 6.9 × 5 × 3.9 cm = 2.72” × 1.97” × 1.54”
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TX71X5: Painite with Corundum
Crystal of this rare borate of which very few significant samples are known. With very well defined faces and edges, the crystal shows a very well developed hexagonal prism that is almost completely coated by small crystals of red Corundum.
Hinthar Hill, Wet-loo, Kyauk-Pyat-That, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region (Mandalay Division)  Myanmar (Burma)
Specimen size: 3.4 × 0.7 × 0.7 cm = 1.34” × 0.28” × 0.28”
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EQ64P3: Painite with Corundum (variety ruby)
Parallel growths of crystals that are very big and well defined for the species. They have very good color and luster, and they are with Corundum (variety ruby) on matrix. Only a few specimens of this very rare species appeared and there were no further finds so we consider it exceptional.
Hinthar Hill, Wet-loo, Kyauk-Pyat-That, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region (Mandalay Division)  Myanmar (Burma) (2007)
Specimen size: 4.3 × 2.6 × 2.4 cm = 1.69” × 1.02” × 0.94”

Main crystal size: 1 × 0.2 cm = 0.39” × 0.08”
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TL17G9: Painite with Corundum (variety ruby)
Painite is surely the most important mineralogical discovery of 2006. It is a very, very rare species and, in the past, only few pieces had been found. Recent finds in Myanmar gave some few more pieces.
In the case of this sample, we must add to its rarity the extremely unusual fact that Painite is on matrix and, more, it’s with small Corundum (variety ruby) crystals. Furthermore, as detailed picture shows, its upper part is well finished. Then, considering its size, that it’s on matrix, that the piece is undamaged, its termination and the accompanying Corundum we can say it’s really an exceptional piece.
Hinthar Hill, Wet-loo, Kyauk-Pyat-That, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region (Mandalay Division)  Myanmar (Burma) (05/2005)
Specimen size: 5.5 × 2.4 × 2 cm = 2.17” × 0.94” × 0.79”
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EH10AA1: Paradamite
Aggregate of very sharp and exceptionally well developed Paradamite crystals, rare and unmistakable with Adamite, with an intense and uniform yellow color and on limonite matrix. The sample is from the type locality for the species and it is with a label of the very well-known collection of Ronald J. Pellar that we will send to the buyer.
Ojuela Mine, Mapimí, Municipio Mapimí, Durango  Mexico
Specimen size: 1.7 × 1.2 × 1.2 cm = 0.67” × 0.47” × 0.47”

Main crystal size: 0.5 × 0.3 cm = 0.20” × 0.12”
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RQ37F8: Parahopeite
Another classic, but the form of the crystals is much better than most of the other specimens from Broken Hill. Bought in 1948 from Gregory & Bottley, London.
Broken Hill, Kabwe  Zambia (±1948)
Specimen size: 4 × 3 × 2.5 cm = 1.57” × 1.18” × 0.98”
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NZ46AM5: Paratellurite with Rodalquilarite and Jarosite
Paratellurite, a rare oxide of tellurium together with colorful Rodalquilarite and small crystals of Jarosite. This specimen comes from the Ignacio Gaspar Sintes collection, whose collection file we will send to the buyer as well as a copy of the analysis.
340 vein, Rodalquilar, Níjar, Comarca Metropolitana de Almería, Almería, Andalusia  Spain (±2016)
Specimen size: 2.3 × 1.5 × 0.9 cm = 0.91” × 0.59” × 0.35”
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MV14AH4: Paravauxite
Very sharp Paravauxite crystals on a rock matrix. The crystals are pearly white, translucent and very bright. The sample is from the type locality for the species. We’ll send to the buyer the original label and also a copy of the computer card with the full text in the collection catalog.
Siglo Veinte Mine, Llallagua, Rafael Bustillo Province, Potosí Department  Bolivia
Specimen size: 4.6 × 4.1 × 1.6 cm = 1.81” × 1.61” × 0.63”
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RL86K0: Paravauxite
Very sharp, well defined and bright prismatic crystals on matrix. Registered with the Folch collection number 3754, it was previously from the A. Santos collection (1952).
Mina Siglo XX, Llallagua, Potosí  Bolivia (±1952)
Specimen size: 3.8 × 3.2 × 4 cm = 1.50” × 1.26” × 1.57”

Main crystal size: 0.7 × 0.3 cm = 0.28” × 0.12”
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ER37E6: Paravauxite
Only one mine produces good Paravauxite and none have been found there for years. So when I get hold of one from a collection or Museum I am very pleased (this one comes from the Seaman Museum). Lots of crystals that, while small, have a ‘fresher’ look than is typical with this species. We will send you the original label from the museum.
Siglo Veinte Mine, Llallagua, Rafael Bustillo Province, Potosí Department  Bolivia
Specimen size: 5.5 × 4 × 4.3 cm = 2.17” × 1.57” × 1.69”
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TFR68AP9: Paravauxite with Sigloite
Druse of prismatic crystals of Paravauxite of good size, with sharp crystal forms and an excellent state of conservation. With small transparent Quartz crystals. From the type locality for both species, the Paravauxite and the Sigloite.
Siglo Veinte Mine, Llallagua, Rafael Bustillo Province, Potosí Department  Bolivia
Specimen size: 6 × 3.8 × 2.6 cm = 2.36” × 1.50” × 1.02”

Main crystal size: 1.1 × 0.6 cm = 0.43” × 0.24”
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AB19S9: Paravauxite with Sigloite
An excellent sample with thick prismatic crystals of Paravauxite, on matrix, with very well defined faces and edges, of a slightly greenish yellow color and very bright for the species. In some areas on the sample and near to the Paravauxite crystals are growths of thin prismatic crystals of the rare mineral Sigloite, smaller and orange in color.
Mina Siglo XX, Llallagua, Potosí  Bolivia
Specimen size: 6.3 × 4.2 × 1.4 cm = 2.48” × 1.65” × 0.55”
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MB26I2: Pargasite
Prismatic flattened crystals of very well defined faces and edges, black, on a matrix of the same mineral which contrasts with the white Calcite partially covering the specimen.
The specimen is from John. S. White collection and we’ll send the label with the sample.
Kollona, Embilipitiya, Uva  Sri Lanka
Specimen size: 3.8 × 3.7 × 2.5 cm = 1.50” × 1.46” × 0.98”

Main crystal size: 1.3 × 1.3 cm = 0.51” × 0.51”
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2M57: Parisite-(Ce)
Crystal of Parisite-(Ce) with hexagonal cross-section and pyramidal habit, brown in color, with color zoning, well defined faces and edges and terminated on top. From a mine from which Fluorite was extracted in the 1950s but which still yields surprises such as this rare earth specimen.
Snowbird Mine, Fish Creek, Alberton, Mineral County, Montana  USA
Specimen size: 0.9 × 0.8 × 0.6 cm = 0.35” × 0.31” × 0.24”
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TRJ16AO2: Pearceite with Proustite
Group of very sharp 'Pearceite' crystals, with a hexagonal outline, lustrous and on matrix, with Calcite and Proustite crystals. In the absence of more information, we retain the original name 'Pearceite' although Uchucchacua specimens, according to the recent nomenclature changes introduced by the IMA, would generally more specifically be Pearceite-T2ac. We will ship the specimen in its original Perky box from the collection of Robert J. (Bob) Noble, which also contains the label.
Uchucchacua Mine, Oyón Province, Lima Department  Peru
Specimen size: 2.4 × 2.3 × 1.5 cm = 0.94” × 0.91” × 0.59”
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TM98AJ3: Pearceite-T2ac with Calcite, Pyrite and Chalcopyrite
Group of Pearceite crystals with a thick-tabular shape and very well defined hexagonal contour. They are very bright and are on matrix, with rhombohedral Calcite crystals, small cubic Pyrite crystals, and Chalcopyrite crystals.
Uchucchacua Mine, Oyón Province, Lima Department  Peru
Specimen size: 5.2 × 4.6 × 2.1 cm = 2.05” × 1.81” × 0.83”

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