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Topaz With Uranpyrochlore Inclusions

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ZSO865714

Topaz With Uranpyrochlore Inclusions

Radioactive

Description Tabs

Description
Locality: 
Darrah I Pech, Chapa Dara District, Kunar Province, Afghanistan
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 3.3 × 2.8 cm
Description

This is a very interesting appearance.
U-bearing inclusions in quartz crystal. Rarely seen in such beautiful dark spots in similarly clear transparent quartz.

There are some small crystals of uranpyrochlore in quartz and left black (smoky) radiated halos. (Pleochroic halo)

Mineral Data
What's on the rock

Topaz

Formula: 
Al2(SiO4)(F,OH)2
Strunz: 
9.AF.35
Crystal System: 
Orthorhombic - Dipyramidal
Hardness: 
8.0
Streak: 
White

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