Fine Mineral Specimens Over $50
- Availability
- Sold
- Locality
- Keeley-Frontier mine, Cobalt dist., Ontario, Canada
- Formula
- Ag2S
- Size
- 3.3 x 2.8 x 1.0 cm - Miniature
- Tagged
- sulfide, silver
Soft, sectile mass of Acanthite with many crude forms of cubic crystals. The cluster at the tip is 7mm across. The specimen comes from the historic cobalt/silver Keeley-Frontier mine located in one of the largest silver mining districts in the world. The mine produced an incredible 3.3 million pounds of cobalt and 19.1 million ounce of silver. There is associated Calcite in mass and as crystals, a clear indication that the specimen was never etched.
- Availability
- Sold
- Locality
- Santa Eulalia, Chihuahua, Mexico
- Formula
- Ag2S
- Size
- 10 x 5.5 x 4 cm - Cabinet
- Tagged
- sulfide, silver
Rich specimen with a great amount of Acanthite as oddly shaped crystals, mostly modified cubic forms. It is also rich in yellowish Fluorite. Some of the cubes you can see in the photos are actually the Fluorite coated with Acanthite.
- Availability
- Sold
- Locality
- Mt Xuebaoding, Pingwu Co., Mianyang, Sichuan prov., China
- Formula
- NaAlSi3O8
- Size
- 9 x 8 x 6 cm - Sm Cabinet
Amazing white to colorless and large Albite crystals to 7cm! Incredible specimen for Albite. Ex. Dr. David London.
- Availability
- Sold
- Locality
- Tolbachik Volcano, Kamchatka, Russia
- Formula
- K3Cu2+3AlO2(SO4)4
- Size
- 2 x 1.8 x 2 cm - Thumbnail
- Tagged
- copper
- Special Info
- Type Locality
- Special Info
- XRD Confirmed
- Special Info
- EDS Confirmed
Tiny acicular green crystals throughout vuggy matrix. Rich. Dr. Igor Pekov specimen.
- Availability
- Sold
- Locality
- Greystones quarry, Lezant, Cornwall, England
- Formula
- PbSO4
- Size
- 6 x 5.5 x 3 cm - Sm Cabinet
Colorless, prismatic crystals of Anglesite to 6mm in vuggy Galena matrix. The specimen comes with three old labels, the notable is an original Barstow specimen from his private collection stating it was collected by Barstow in 1960.
- Availability
- Sold
- Locality
- Arechuybo, Chihuahua, Mexico
- Formula
- Sb
- Size
- 5 x 2.5 x 4 cm - Miniature
- Tagged
- native element
Botryoidal silver native Antimony. Awesome specimen.
