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Hornblende

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PDM970959

Hornblende

Classic Locality

Description Tabs

Description
Locality: 
Arendal, Agder, Norway
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 4.6 × 1.5 cm
Weight: 
62.00gr
Description

Prismatic lustrous crystals of green hornblende from Arendal, a super classic Norwegian locality. Old specimen, accompanied by original labels, one handwritten from “Les Fils D’Emile Deyrolle that dates back before 1937 (Wilson, W.E (2022): “Mineralogical Record Biographical Archive at Mineralogical Record”). Ex Ennio Contarini, #2276.

Combine specimens to reduce shipping costs!.

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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