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Hornblende

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CLD169027

Hornblende

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Description
Locality: 
Pfitscher Joch, Trentino-Alto Adige, Italy
Size Range: 
Museum (18cm plus)
Size: 
19 × 14 × 4 cm
Description

Large plate with several black hornblende crystals in schist

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

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