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Cancrinite & Pyrochlore & Sanidine

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SHS1166648

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Description
Locality: 
Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1 × 1 cm
Description

Cancrinite with pyrochlore and sanidine on matrix

Mineral Data
What's on the rock

Cancrinite

Formula: 
(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2·2H2O
Strunz: 
9.FB.05
Hardness: 
5.0 - 6.0
Streak: 
white
Type Locality: 
Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...

Pyrochlore

Synonym Of: 

Pyrochlore Group

Formula: 

A2Nb2(O,OH)6Z

Strunz: 
4
Hardness: 
5 - 5.5

Pyrochlore Supergroup

Group Parent: 
Pyrochlore Group

Sanidine

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Crystal System: 
Monoclinic - Prismatic
Hardness: 
6.0
Streak: 
White
Type Locality: 
Drachenfels, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany

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Start 15 Feb 18:00
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