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Graphite

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RSL779623

Graphite

Classic Locality

Description Tabs

Description
Locality: 
Tres Hermanos Mine, Pilotuerto, Tineo, Asturias, Spain
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.2 × 4 × 3.8 cm
Description

Nowadays, graphite specimens from this classic Asturian locality are very difficult to be found. These specimens show contiguous columns, with greasy luster and defined hexagonal forms. The crystal habit of natural graphite in most cases is determined by its highly anisotropic, layered structure. However, anomalous habits of graphite,determined not only by its structure, but also by the peculiarities of the growth environment, are frequently encountered, and optimization of the space available when solidifying forming columns. Excol. Jordi Povill (Olesa de Montserrat, Barcelona, Catalonia)

Mineral Data
What's on the rock

Graphite

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