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Clinoferrosilite & Tridymite

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SHS1047619

Clinoferrosilite & Tridymite

Description Tabs

Description
Locality: 
Nickenicher Sattel, Nickenich, Andernach, Mayen-Koblenz, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2.5 × 2 cm
Description

Clinoferosilite and tridymite on matrix

Mineral Data
What's on the rock

Clinoferrosilite

Formula: 
Fe2+SiO3
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.10
Hardness: 
5.0 - 6.0
Streak: 
white
Type Locality: 
Obsidian Cliff, Yellowstone National Park, Park Co., Wyoming, USA

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