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Scheelite Chalcopyrite Quartz & Galena

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PDM561377

Scheelite Chalcopyrite Quartz & Galena

Ex M. Ungur
Gem Crystal

Description Tabs

Description
Locality: 
Baia Sprie Mine, Baia Sprie, Maramureș County, Romania
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 3 × 2.6 cm
Largest Crystal: 
1.00cm
Description

Light bluish-grey modified dypiramidal scheelite crystal perched on a matrix of quartz, disphenoidal chalcopyrite, spinel-law twinned galena, and calcite. The luster of the scheelite is resinous and very intense, and the crystal is much transparent that is shown in the pictures. It does have some chipping at the tip. Found in 1998. Ex M. Ungur Collection (Romania).

Mineral Data
What's on the rock

Scheelite

Formula: 
Ca(WO4)
Strunz: 
7.GA.05
Crystal System: 
Tetragonal
Hardness: 
4.5 - 5.0
Streak: 
White
Type Locality: 
Bispbergs Klack, Säter, Dalarna, Sweden

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0

Quartz

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

Galena

Formula: 
PbS
Strunz: 
2.CD.10
Crystal System: 
Isometric
Hardness: 
2.5
Colour: 
Lead-grey
Streak: 
Lead-grey

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