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Magnetite & Dolomite

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SER978659

Magnetite & Dolomite

Description Tabs

Description
Locality: 
Christie Mine, Wright Mountain, New Idria, Fresno County, California, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.6 × 3.7 × 2.7 cm
Description

hundreds of wonderful, lustrous magnetite crystals on white dolomite

Mineral Data
What's on the rock

Magnetite

Formula: 
Fe2+Fe3+2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
5.5 - 6.5
Streak: 
Black

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White