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Scheelite & Cassiterite On Muscovite

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PDM840161

Scheelite & Cassiterite On Muscovite

Fluorescent

Description Tabs

Description
Locality: 
Mount Xuebaoding, Pingwu County, Mianyang, Sichuan Province, China (Peoples Republic)
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.3 × 6.1 × 3.6 cm
Weight: 
225.00gr
Description

Yellow cream bipyramidal crystals of scheelite on a matrix of muscovite, associated to black lustrous cassiterite twins. Under short waves scheelite crystals are intensively fluorescent. Some scheelite crystals are incomplete and the rock matrix is sawn at the rear.

Acquired in 2002. Ex J. Muizebelt specimen.

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

Cassiterite

Formula: 
SnO2
Strunz: 
4.DB.05
Crystal System: 
Tetragonal
Hardness: 
6.0 - 7.0

Muscovite

Formula: 
KAl2(AlSi3O10)(OH)2
Strunz: 
9.EC.15
Hardness: 
2.5
Streak: 
White

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