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Stilbite

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RPL886099

Stilbite

Description Tabs

Description
Locality: 
Sgurr nam Fiadh, Carbost, Isle of Skye, Scotland, United Kingdom
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
5 × 8 × 3.5 cm
Largest Crystal: 
1.10cm
Weight: 
72.00gr
Description

A thin plate of creamy white sheaf like crystals of stilbite on a thin crust of matrix. A second generation has formed to produce many, barely attached double terminated stilbite crystals. Damage free and a very delicate specimen considering the rigours of accessing and recovering material from this rarely visited Heddle location.  

Previous labels supplied (not photographed)
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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