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Quartz Psm Baryte

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RPL688893

Quartz Psm Baryte

Pseudomorph

Description Tabs

Description
Locality: 
Gravel Hill Mine, Perranzauloe, Cornwall, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 5.5 × 4 cm
Largest Crystal: 
0.70cm
Weight: 
110.00gr
Description

 

An unusual sculptural specimen of quartz completely replacing bladed baryte crystals. Several vugs and hollows in the limonitic matrix are covered in fine micro quartz on which are scattered complete and well-formed pseudomorphs of quartz after bladed baryte.

Previous labels supplied (not photographed)
Mineral Data
What's on the rock

Quartz

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

Baryte

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

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