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Augite

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ZLT113104

Augite

Description Tabs

Description
Locality: 
Erque, Gomera, Canary Islands, Spain
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2 × 3 × 2.2 cm
Description

Nice augite twin after (100) in tuff matrix from a roadside location at the way to Erque. Collected in 1996. Matrix specimens like this are rare.

Mineral Data
What's on the rock

Augite

Formula: 
(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Strunz: 
9.DA.15
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0

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