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Quartz

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PDM701358

Quartz

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Description
Locality: 
Tête Noire, Le Trient Valley, Valais, Switzerland
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 2.3 × 1.7 cm
Description

Group of doubly-ended quartz crystals from Tête Noire (Switzerland), a remote alpine locality, with uneven grey colour due to unknown inclusions. A floater piece, completely free of damage.

Acquired in 1981 to local collectors by Marcel Cromphout, a known Belgian collector of (mainly) quartz specimens.

Ex. Marcel Cromphout #1807.

Mineral Data
What's on the rock

Quartz

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

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