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Stilbite

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MGR805089

Stilbite

Classic Locality

Description Tabs

Description
Locality: 
Streymoy Island, Faroe Islands, Denmark
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.2 × 3.3 × 2.7 cm
Description

Viamineralia had the great opportunity to acquire an old collection - the former owner used to spend his holidays on Iceland and Faroe Islands for decades and had a collection with  mineral only from this one area. In this special auction we will present some of the very best pieces. 

The snowy white crystals are set on a thin dark, neraly black matrix. The quality of the specimen is exceptional, all these tiny faces are razor sharp terminated and show superb luster! The main group is set exposed and completly free-standing. No contacts, no damages.

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