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Boulangerite & Quartz

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Boulangerite & Quartz

Description Tabs

Description
Locality: 
Herja Mine, Chiuzbaia, Baia Mare, Maramureș County, Romania
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 8.5 × 2.5 cm
Description

Quartz on boulangerite matrix from Maramures region, Romania.

Many, often double ended, quartz crystals influenced by the dark boulangerite matrix. The whole matrix is crystaline and shows interesting growth and rather good total size.

The specimen is in good condition.

By investigating the internet I found only a few similar specimens under "Herkimer quartz var. Maramures diamond".

Mineral Data
What's on the rock

Boulangerite

Formula: 
Pb5Sb4S11
Strunz: 
2.HC.15
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.0
Colour: 
Lead grey
Streak: 
Brownish
Type Locality: 
Molières, Gard, Languedoc-Roussillon, France

Quartz

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

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