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Sphalerite Calcite & Johannsenite

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ESM606603

Sphalerite Calcite & Johannsenite

Description Tabs

Description
Locality: 
Iron Cap Mine, Black Peak, Gila County, Arizona, United States of America
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2.5 × 3 × 2.5 cm
Description

A dark blocky sphalerite crystal on white botryoidal calcite aggregates on a johannsenite matrix

Mineral Data
What's on the rock

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Johannsenite

Formula: 
CaMn2+Si2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.15
Hardness: 
6.0
Streak: 
white
Type Locality: 
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA