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Cristobalite

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JYJ691970

Cristobalite

ex P. Ramdohr collection

Description Tabs

Description
Locality: 
Blaue Kuppe, Eschwege, Werra-Meißner, Kassel Region, Hesse, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4 × 3.5 cm
Description

Several cristobalite crystals in cavities on a old time specimen with an antique label from P. Ramdohr (ramdohrite)!

Mineral Data
What's on the rock

Cristobalite

Formula: 
SiO2
Strunz: 
4.DA.15
Crystal System: 
Tetragonal - Trapezohedral
Hardness: 
6.0 - 7.0
Streak: 
White
Type Locality: 
Cerro San Cristóbal, Mun. de Pachuca, Hidalgo, Mexico