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Agate & Quartz

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NST646202

Agate & Quartz

Description Tabs

Description
Locality: 
Idar-Oberstein, Birkenfeld, Rhineland-Palatinate, Germany
Class: 
Massive/Crystalline
Size Range: 
Cabinet (10-18 cm)
Size: 
10.5 × 7.3 × 2.5 cm
Description

A polished agate in quartz from Idar-Oberstein, the center of the gemstone industry in Germany where gemstones from throughout the world are handled. The whole industry was primarily based on local finds of agate and amethyst geodes. This one is from the southern area of the city, called Oberstein, where several temporary find spots are known.

Mineral Data
What's on the rock

Agate

Variety Of: 

Chalcedony

Hardness: 
6.5 - 7.0
Formula: 
SiO2
Hardness: 
0.0

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White