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Hornblende

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SHS776404

Hornblende

Description Tabs

Description
Locality: 
Arendal, Agder, Norway
Class: 
Single Crystal
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 2.7 × 1.3 cm
Description

Nice hornblende crystal

Mineral Data
What's on the rock

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