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Matildite Pyrite & Quartz

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ESM547926

Matildite Pyrite & Quartz

Description Tabs

Description
Locality: 
More Cash Lode, Montezuma District, Park County, Colorado, United States of America
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2.3 × 3.8 × 2.8 cm
Description

Black metallic matildite with minor pyrite in a quartz matrix

Mineral Data
What's on the rock

Matildite

Formula: 
AgBiS2
Strunz: 
2.JA.20
Hardness: 
2.5
Type Locality: 
Matilda Mine, Morococha District, Yauli Province, Junín Department, Peru

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White