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Rhodochrosite & Acanthite

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JYJ709990

Rhodochrosite & Acanthite

With Antique Label

Description Tabs

Description
Locality: 
Sunnyside Mine Group, Bonita Peak, Gladstone, San Juan County, Colorado, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3.6 × 1.9 cm
Description

Pink rhodochrosite crystals with minor black acanthite and pyrite on matrix. From an old german collection, comes with old label from 1970. 

Mineral Data
What's on the rock

Rhodochrosite

Formula: 
MnCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Cavnic Mine (Kapnikbánya), Cavnic (Kapnic; Kapnik), Maramureș Co., Romania

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
Labels
Label Images - only: Rhodochrosite & Acanthite