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Prismatine

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RMM57882

Prismatine

collected by the seller
Rare Mineral

Description Tabs

Description
Locality: 
Hincks Bridge, Lac-Sainte-Maire, Outaouais, Québec, Canada
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 2.5 × 1 cm
Largest Crystal: 
1.20cm
Description

Greenish-grey prismatic prismatine in a matrix of quartz with some biotite, garnet, sillimanite, and pyrite.

Prismatine crystals measure up to 1.2 cm in length and up to 1.5 mm in diameter and constitute about 30% of the piece.

 

Mineral Data
What's on the rock

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

If you have any questions or concerns, feel free to contact us and we will work with you to find a solution.

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.