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Aegirine & Anorthoclase

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CHA213483

Aegirine & Anorthoclase

Description Tabs

Description
Locality: 
Água de Pau Volcano, São Miguel Island, Azores District, Portugal
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 3 × 2.3 cm
Description

Very good dark green crystals of aegirine with some white/colourles crystals of anorthoclase on matrix

Mineral Data
What's on the rock

Aegirine

Formula: 
NaFe3+Si2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.25
Crystal System: 
Monoclinic
Hardness: 
6.0
Type Locality: 
Rundemyr, Øvre Eiker, Buskerud, Norway

Anorthoclase

Polymorph of: 
Formula: 
(Na,K)AlSi3O8
Group Parent: 
Feldspar Group
Strunz: 
9.FA.30*
Crystal System: 
Triclinic
Hardness: 
6 - 6.5
Colour: 
white, colourless, greyish pink
Streak: 
white
Type Locality: 
Pantelleria Island, Trapani Province, Sicily, Italy

Seller Information

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