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”




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 analysis copy

Weight: 3.8 grams



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

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-Saône, Rhône, Auvergne-Rhône-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




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.

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, Khénifra 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 analysis copy



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 Hammam, Ait Mimoune, Khémisset Province, Rabat-Salé-Kénitra 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.

ASIA (excl. China)

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

Fluorescent light (daylight)
 

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”






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