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Graphite

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RSL663860

Graphite

Classic Locality

Description Tabs

Description
Locality: 
Tres Hermanos Mine, Pilotuerto, Tineo, Asturias, Spain
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 3 × 2.8 cm
Description

Graphite crystals from this Spanish locality are very rare in the market. This is a good sized specimen showing the hexagonal prism formed by columns. The graphite is formed by the action of a porphyry intrusion on coalbeds.

Mined: 
1985's
Mineral Data
What's on the rock

Graphite

Formula: 
C
Strunz: 
1.CB.05a
Crystal System: 
Hexagonal
Hardness: 
1.0 - 2.0