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Chrysoberyl & Sillimanite

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MNR558716

Chrysoberyl & Sillimanite

ex. Rudolf Ďuďa collection
Classic Locality

Description Tabs

Description
Locality: 
Maršíkov, Šumperk, Olomouc Region, Czech Republic
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 2.8 × 2 cm
Largest Crystal: 
0.40cm
Description

Very fine 4 mm Chrysoberyl in sillimanite matrix.Classic locality for chrysoberyl in Europe.

Ex. Rudolf Ďuďa collection #4/1023

 

Mineral Data
What's on the rock

Chrysoberyl

Formula: 
BeAl2O4
Strunz: 
4.BA.05
Crystal System: 
Orthorhombic
Hardness: 
8.5
Streak: 
White
Type Locality: 
Brazil

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