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Stilbite

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NST642227

Stilbite

Description Tabs

Description
Locality: 
Bornberg Quarry, Dillenburg District, Hesse, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 3 × 3.1 cm
Description

Beautiful roundish group of yellow stilbite with laumontite and calcite from Bornberg diabase quarry. Attractive miniature from an older find in the 1990s.

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
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