![]() |
|
ex. John White
This species is a VERY VERY rare mercury selenide that forms good crystals at only a few locales. Although small (sub-mm micros), these are classic for this exhausted lcoation and show good form under a scope. Excelent reference specimen, very hard to find.
5 x 5 x 3.9 cm. Tiemannite is a very rare mercury selenide: simply HgSe. This is the classic locality for crystals: tiny black modified tetrahedra. This specimen hosts a few superb, sharp crystals, unusually free of alteration coatings, on matrix. The crystals are small, under 2mm, but very sharp and eye-visible. Another vug, with smaller crystals, lies beneath them. Ex. Philadelphia Academy of Sciences Collection.
2.9 x 2.0 x 1.5 cm. This species is a very rare mercury selenide that forms good crystals at only a few locales. Although small (sub-mm micros), these are classic for this exhausted location and show good form under a scope. Excellent reference specimen, very hard to find. Ex. John White Collection.
ex. Philadelphia Academy of Natural Sciences
Tiemannite is a VERY rare mercury selenide: simply HgSe. This is the classic locality for crystals: tiny black modified tetrahedra. This specimen hosts a few VERY choice, sharp crystals, unusually free of alteration coatings, on matrix. The crysta;ls are small, under 2mm, but very sharp and eye-visible. Another vug, with smaller crystals, lays beneath them. One suspects the museum numbering person mislabelled the piece, not recognizing the material and putting the museum accession number on the display face! All Content and Design ©1996-2012 The ArkenstonePowered by http://mineralwebsites.comMineral Specimens by species; or by specimen id. | ||||||||||||||||||