Fine Mineral Specimens Over $50
- Availability
- Sold
- Locality
- Mun. de Sombrerete, Zacatecas, Mexico
- Formula
- Ag2S
- Size
- 7 x 5 x 4 cm - Sm Cabinet
- Tagged
- sulfide, silver
4mm Acanthite crystals in a pocket lined with excellent Pyrite crystals.
- Availability
- Sold
- Locality
- Batopilas, Chihuahua, Mexico
- Formula
- Ag2S
- Size
- 7.5 x 6 x 4 cm - Sm Cabinet
- Tagged
- sulfides, silver
An old-timer of Acanthite with Silver. The Acanthite measures 7mm. The Silver is all over the specimen, but the best are two wires to 1-2mm around the Acanthite. Acanthite of this size are generally not seen from Batopilas.
- Availability
- Sold
- Locality
- Guanajuato, Guanajuato, Mexico
- Formula
- Ag2S
- Size
- 2.5 x 2 x 2 cm - Thumbnail
- Tagged
- sulfide, silver
A fantastic specimen and classic from this locality. It is composed of tiny Chalcopyrite crystals which encrusted fairly good-sized Polybasite crystals to 5mm. You can make out the hexagonal outlines of the Polybasite. Sprinkled upon all of this are superb gray cubic Acanthite crystals to 4mm. The core as seen on the bottom is probably Pyrargyrite. It a very unique specimen. An example of one of these was featured on page 545 of Mineralogical Record v47 n5, Mexico VII.
- Availability
- Available
- Price
- $275.00
- Reduced Price
- $175.00
- Locality
- Proprietary mine, Broken Hill, New South Wales, Australia
- Formula
- Mn2+S
- Size
- 9.5 x 6 x 3.5 cm - Cabinet
Dull dark grey long strands of Alabandite crystals to over 3cm. This is by all accounts a very nice, choice, specimen.
A note from a fine mineralogist:
First, no Alabandite was found at the Proprietary (Broken Hill Proprietary; BHP) Mine at Broken Hill. It is probably from the Zinc Corp. (ZC) Mine, 20st Level at Broken Hill. This is where these "Plumrose Spray" crystal groups were found. Second, current research has now found that these "Plumrose Spray" crystal groups are actually Alabandite pseudomorphs of Ramberite crystals not native Alabandite crystals.
- Availability
- Sold
- Locality
- Crestmore, Riverside Co., California, United States
- Formula
- Fe2+3Al2(SiO4)3
- Size
- 6 x 5 x 3 cm - Sm Cabinet
A large Almandine crystal from this interesting locality which is a skarn deposit with pegmatite dikes. The number of minerals at this locality is as great as Tsumeb, MSH, and Langban. The Almandine crystal is 2.3cm wide but has a ding. There is a little color zoned Diopside crystal adjacent to it which is quite nice. The martrix is blue Calcite from the Bluesky Formation.
- Availability
- Sold
- Locality
- Kerch Peninsula, Crimea, Russia
- Formula
- Ca2Fe2+(PO4)2ยท4H2O
- Size
- 5.5 x 4 x 3.5 cm - Sm Cabinet
- Tagged
- phosphate
Green crystal groups to 1.2cm.
