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Hornblende

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CLB136408

Hornblende

Classic Locality

Description Tabs

Description
Locality: 
Nickenich, Andernach, Mayen-Koblenz, Rhineland-Palatinate, Germany
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 5 × 4.5 cm
Description

Very nice acicular hornblende crystals on lava matrix. Porricine not pictured (small aggregate with crystals in vug).

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

Seller Information

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