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Greigite

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JYJ613392

Greigite

Description Tabs

Description
Locality: 
Alacrán Mine, Pampa Larga, Tierra Amarilla, Copiapó Province, Atacama Region, Chile
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.1 × 0.7 × 1 cm
Description

Rare analysed greigite grains in matrix.

Mineral Data
What's on the rock

Greigite

Formula: 
Fe2+Fe3+2S4
Strunz: 
2.DA.05
Crystal System: 
Isometric
Hardness: 
4.0 - 4.5
Streak: 
black
Type Locality: 
Four Corners No. 3; 4 & 5 wells, Kramer-Four Corners area, San Bernardino Co., California, USA