Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Sanidine & Tridymite

Views:
Watches:
SHS143259

Sanidine & Tridymite

Description Tabs

Description
Locality: 
Wannenköpfe Quarry, Ochtendung, Maifeld, Mayen-Koblenz, Rhineland-Palatinate, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 1.4 × 0.9 cm
Description

Sanidine and tridymite on matrix

Mineral Data
What's on the rock

Sanidine

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Crystal System: 
Monoclinic - Prismatic
Hardness: 
6.0
Streak: 
White
Type Locality: 
Drachenfels, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany

Tridymite

Formula: 
SiO2
Strunz: 
4.DA.10
Crystal System: 
Triclinic - Pedial
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Cerro San Cristóbal, Mun. de Pachuca, Hidalgo, Mexico