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Stilbite & Scolecite

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MCH628675

Stilbite & Scolecite

Classic Locality

Description Tabs

Description
Locality: 
Sulitjelma Mines, Fauske, Nordland, Norway
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.8 × 6.1 × 4.4 cm
Description

A fine, old time specimen of stilbite and scolecite from the Sulitjelma Cu-mines in Norway. Nice, slightly yellowish stilbite crystals, up to 2 cm in size, are mostly set on radial aggregates of acicular scolecite crystals.

Mineral Data
What's on the rock

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

Scolecite

Formula: 
CaAl2Si3O10·3H2O
Strunz: 
9.GA.05
Hardness: 
5.0 - 5.5
Streak: 
white

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