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Hessite

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MGR798955

Hessite

Rare Mineral

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Description
Locality: 
Botești, Zlatna, Alba County, Romania
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.4 × 2.7 × 2.1 cm
Description

A really rare mineral - named in 1843 by Frobel in honor of Germain Henri Hess. Swiss-Russian chemist who proposed Hess's Law, which stated that the final thermodynamic energy of a series of chemical reactions is independent of the chemical pathway to that state. Earlier called tellursilber by Rose and later confounded with petzite and other species. The particular specimen shows free-standing well shaped crystals set on matrix in attractive combination with several quartz crystals. No significant damages to report.

Mineral Data
What's on the rock

Hessite

Formula: 
Ag2Te
Strunz: 
2.BA.60
Hardness: 
2.0 - 3.0
Streak: 
black
Type Locality: 
Koz'modem'yanskii shaft, Second Zavodinskii Mine (Second Sawodinsk Mine), Zyryanovsk Rayon, Altai Mts (Rudnyi Altai), Eastern Kazakhstan Province (Shyghys Qazaqstan Oblysy; Vostochno-Kazakhstanskaya Oblast'), Kazakhstan...

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Start 12 Sep 18:00
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Shipping Information

Postage Area Price
Austria 5
5
Europe 14
14
North America 16
16
Rest of World 19
19

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