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Rhönite & Sanidine

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CLB97510

Rhönite & Sanidine

ex coll. Müller, Koblenz
Classic Locality

Description Tabs

Description
Locality: 
Nickenich, Andernach, Mayen-Koblenz, Rhineland-Palatinate, Germany
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.6 × 8.7 × 5.5 cm
Largest Crystal: 
1.60cm
Description

Rather good specimen of brown rhönite crystals in vulcanic matrix with sanidine.

Mineral Data
What's on the rock

Rhönite

Formula: 
Ca2(Mg,Fe2+,Fe3+,Ti)6[O2|(Si,Al)6O18]
Strunz: 
9.DH.40
Hardness: 
5.0 - 6.0
Type Locality: 
Rhön, Fulda, Hesse, Germany

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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