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Quartz & Anatase

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SER1039607

Quartz & Anatase

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Description
Locality: 
Val Toppa Mine, Pieve Vergonte, Ossola Valley, Verbano-Cusio-Ossola, Piedmont, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.1 × 3.1 × 2.5 cm
Description

a group of quartz crystals hosts some blue anatase crystals

Mineral Data
What's on the rock

Quartz

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

Anatase

Formula: 
TiO2
Strunz: 
4.DD.05
Hardness: 
5.5 - 6.0
Type Locality: 
St Christophe-en-Oisans, Bourg d'Oisans, Isère, Rhône-Alpes, France...

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Start 23 Apr 18:00
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