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Stilbite

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SYA899563

Stilbite

Ex coll. Ulrich Vetter, Hannover and Alexander Franz, Hannover
Classic Locality

Description Tabs

Description
Locality: 
Bornberg Quarry, Herborn, Lahn-Dill, Hesse, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 4.5 × 2.2 cm
Description

Radial stilbite groups with heulandite and calcite crystals

Ex collection Dipl Min. Ulrich Vetter, Hannover via Alexander Franz, Hannover.

Comes with the original handwritten labels of both collections.

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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