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Herderite Topaz & Muscovite

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PJM144841

Herderite Topaz & Muscovite

Description Tabs

Description
Locality: 
Braldu Valley, Skardu District, Gilgit-Baltistan, Pakistan
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 5.5 × 2.8 cm
Description

A pale green herderite crystal sits to one side of a plate of white albite crystals, with small clear gemmy topaz crystals and rows of purplish starlike muscovite books. A complex combination specimen

Mineral Data
What's on the rock

Herderite

Formula: 
CaBePO4(F,OH)
Strunz: 
8.BA.10
Crystal System: 
Monoclinic
Hardness: 
5.0 - 5.5
Type Locality: 
Sauberg Mine, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany

Topaz

Formula: 
Al2(SiO4)(F,OH)2
Strunz: 
9.AF.35
Crystal System: 
Orthorhombic - Dipyramidal
Hardness: 
8.0
Streak: 
White

Muscovite

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

Seller Information

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Seller's terms and conditions

All goods must be paid for prior to shipping, all bids are binding.