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Cristobalite Var Obsidian

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MEX514478

Cristobalite Var Obsidian

ex krantz stock, ex private collection
Classic Locality

Description Tabs

Description
Locality: 
Lipari Island, Messina Province, Sicily, Italy
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.8 × 6.6 × 2.3 cm
Weight: 
166.00gr
Description

Large specimen with a lot cristobalite balls in vulcanic glas matrix. The specimen comes with two old labels. First one is handwritten, the second is a german discription about this specimen.

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
Labels
Label Images - only: Cristobalite Var Obsidian
Label Images - only: Cristobalite Var Obsidian
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