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Ferro-katophorite & Augite

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PAV956856

Ferro-katophorite & Augite

Classic Locality

Description Tabs

Description
Locality: 
Água de Pau Volcano, São Miguel Island, Azores District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.1 × 1.2 × 1.2 cm
Description

Fantastic ferro-katophorite sample with several perfect crystals with very small aegirine on the tips!

Collected: 
2014
Boxed with Label
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