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Hornblende Psm Feldspar & Stilbite

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SHS140768

Hornblende Psm Feldspar & Stilbite

Description Tabs

Description
Locality: 
Malmberget, Gällivare, Norrbotten County, Sweden
Size Range: 
Cabinet (10-18 cm)
Size: 
11.2 × 8 × 7.8 cm
Description

Nice stilbite crystals on a large pseudomorphose hornblende after feldspar

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

Feldspar

Group Parent: 
Feldspar Group

Stilbite

Synonym Of: 

Stilbite-Ca

Formula: 
NaCa4[Al9Si27O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0

Stilbite-Na

Formula: 
(Na,Ca,K)6-7[Al8Si28O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0
Hardness: 
3.5 - 4
Colour: 
White
Streak: 
White