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Uytenbogaardtite Naumannite Gold & Acanthite

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RHT698665

Uytenbogaardtite Naumannite Gold & Acanthite

ex collection Dr. Schur
Rare Mineral

Description Tabs

Description
Locality: 
New Bullfrog Mine, Nye County, Nevada, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.5 × 0.9 cm
Weight: 
2.00gr
Description

Rare grayish-white uytenbogaardtite with naumannite, acanthite and gold.

Uytenbogaardtite is a rare silver-gold sulfide. Naumannite contains silver and selenium.

Mineral Data
What's on the rock

Uytenbogaardtite

Formula: 
Ag3AuS2
Strunz: 
2.BA.75
Crystal System: 
Tetragonal
Hardness: 
2.0
Type Locality: 
Tambang Sawah, Rejang Lebong District (Rediang Lebong District), Bengkulu Province (Benkoelen Province; Benkulen Province), Sumatera Island (Sumatra Island), Indonesia

Naumannite

Formula: 
Ag2Se
Strunz: 
2.BA.55
Crystal System: 
Orthorhombic
Hardness: 
2.5
Streak: 
black
Type Locality: 
Tilkerode (Abberode), Harz, Saxony-Anhalt, Germany

Gold

Formula: 
Au
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0

Acanthite

Formula: 
Ag2S
Strunz: 
2.BA.35
Crystal System: 
Monoclinic - Prismatic
Hardness: 
2.0 - 2.5
Streak: 
lead grey
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic
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