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Ilvaite Limonite & Pyrite

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PFK860718

Ilvaite Limonite & Pyrite

Classic Locality

Description Tabs

Description
Locality: 
Koundouros, Serifos Island, South Aegean, Greece
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.5 × 1.6 cm
Description

A terminated black crystal of ilvaite with silky luster and some brown limonitized crystals of pyrite on it.

Mineral Data
What's on the rock

Ilvaite

Formula: 
CaFe2+2Fe3+(Si2O7)O(OH)
Strunz: 
9.BE.07
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0
Type Locality: 
Torre di Rio - Santa Filomena area (Monte della Torre), Rio Marina, Elba Island, Livorno Province, Tuscany, Italy

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5

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