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Sillimanite & Prismatine

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RMM95405

Sillimanite & Prismatine

Description Tabs

Description
Locality: 
Hincks Bridge, Lac-Sainte-Maire, Outaouais, Québec, Canada
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 3 × 1 cm
Largest Crystal: 
1.00cm
Description

Needles of clear sillimanite to 1.0 cm in a 1.0 mm thick layer of sillimanite on a piece of paragneiss which contains prismatine crystals.

Mineral Data
What's on the rock

Sillimanite

Formula: 
Al2(SiO4)O
Strunz: 
9.AF.05
Crystal System: 
Orthorhombic
Hardness: 
6.5 - 7.5
Streak: 
white
Type Locality: 
Chester, Middlesex Co., Connecticut, USA

Prismatine

Formula: 
([ ],Fe,Mg)(Mg,Al,Fe)5Al4Si2(Si,Al)2(B,Si,Al)(O,OH,F)22
Strunz: 
9.BJ.50
Crystal System: 
Orthorhombic
Hardness: 
6.5 - 7.0
Type Locality: 
Granulite outcrop, Waldheim, Döbeln, Saxony, Germany

Seller Information

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Seller's terms and conditions

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Please note that we do not hold any responsibility for transport damages or loss of shipped goods if insured shipping is not purchased. Transport damages are to be claimed directly to the transport company in case of insured shipment. The recipients are solely responsible for the compliance of the shipped items with local customs restrictions and tax issues.

 

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