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Baryte & Quartz

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CLB88022

Baryte & Quartz

ex coll. Wittig
Classic Locality

Description Tabs

Description
Locality: 
Villamassargia, Carbonia-Iglesias Province, Sardinia, Italy
Size Range: 
Cabinet (10-18 cm)
Size: 
11.5 × 6.2 × 5.5 cm
Largest Crystal: 
3.70cm
Description

Although the biggest part of this highly interesting specimen consists of very good sharp barite crystals it is unusually light, because they are based on a hollow cast of quartz crystals - a perimorph (probably after calcite?).

Very uncommon.

Backside shown in picture.

Mineral Data
What's on the rock

Baryte

Formula: 
BaSO4
Strunz: 
7.AD.35
Hardness: 
3.0 - 3.5
Streak: 
White

Quartz

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

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