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Andradite On Hornblende

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TBM794523

Andradite On Hornblende

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Description Tabs

Description
Locality: 
Qalat-e Bala Salt Dome, Bandar-Abbas County, Hormozgan Province, Iran
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.4 × 1.8 × 1.5 cm
Weight: 
4.00gr
Description

Elegant and very shiny flattened honey yellow crystals 8 mm long. It is a sample that comes from a private collection of an Italian surveyor  and digged around 1970 in Hormuz zone

Mineral Data
What's on the rock

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Drammen, Buskerud, Norway

Hornblende

Synonym Of: 

Ferro-hornblende

Formula: 
☐{Ca2}{Fe2+4Al}(AlSi7O22)(OH)2
Strunz: 
9.DE.10
Hardness: 
5.0 - 6.0

Magnesio-hornblende

Formula: 
☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Strunz: 
9.DE.10
Hardness: 
5.0 - 6.0