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Hematite & Stilbite

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NST631463

Hematite & Stilbite

Description Tabs

Description
Locality: 
Bellwald, Goms, Valais, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 2.6 × 1.5 cm
Largest Crystal: 
0.80cm
Description

A combination of metallic hematite var. iron rose up to 8 mm on front and backside of the specimen and white stilbite.

 

Mineral Data
What's on the rock

Hematite

Formula: 
Fe2O3
Strunz: 
4.CB.05
Crystal System: 
Trigonal
Hardness: 
5.0 - 6.0

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