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Datolite & Quartz

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CR659932

Datolite & Quartz

ex Dr. H.J. Wilke collection
Classic Locality

Description Tabs

Description
Locality: 
Verkhnii Mine, Dalnegorsk, Primorskiy Kray, Russian Federation
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
12 × 6.5 × 6.5 cm
Largest Crystal: 
2.50cm
Description

Exceptionally sharp, pale blue, water-clear, flattened datolite crystals all around the specimen with minor quartz crystals.

Very unusual and excellent quality specimen from the Verchniy Mine.

Ex. Dr. HJ Wilke collection, Germany.

Mineral Data
What's on the rock

Datolite

Formula: 
Ca(HBSiO5)
Strunz: 
9.AJ.20
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Nødebro Mine (Nøddebro), Arendal Iron Mines, Arendal, Aust-Agder, Norway

Quartz

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