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Hyalite

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QRI1042026

Hyalite

With Antique Label

Description Tabs

Description
Locality: 
Kaiserstuhl Area, Baden-Württemberg, Germany
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.2 × 6.1 × 4.8 cm
Largest Crystal: 
0.30cm
Weight: 
208.00gr
Description

Oldtimer lustrous botryoidal hyalite upon volcanic rock from this classic German locale. Quite contrastful and in gd quality.

It comes from a rather old (I suspect 100+ years old?) collection, most likely German or Swiss, given the handwritten label in German. 

Mineral Data
What's on the rock

Hyalite

Variety Of: 

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Formula: 
SiO2·nH2O
Hardness: 
5.5 - 6.5
Streak: 
white

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