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Dolomite With Muscovite & Pyrrhotite

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LGM164491

Dolomite With Muscovite & Pyrrhotite

Ex Dr. Krantz, Bonn, Germany
With Antique Label

Description Tabs

Description
Locality: 
Simplon Railway Tunnel, Brig, Valais, Switzerland
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 5 × 5 cm
Description

A highly sought-after swiss classic: Dolomite in typical bended shape, with silky luster and muscovite with on-grown tiny pyrrhotite crystals. The Simplon railway tunnel was built in 1898–1905 (1st tube) und 1912–1921 (2nd tube), specimens are extremely rare on the market, and this one is beautiful and in good condition!
Weight: 110 grams

Mineral Data
What's on the rock

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White

Muscovite

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

Pyrrhotite

Formula: 
Fe1-xS (x = 0 to 0.17)
Strunz: 
2.CC.10
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Thank you for viewing my auctions! Maintaining high standards in customer service is extremely important to me. If shipping takes longer than expected, please contact me. It is possible to file an investigation request, and during nearly ten years of e-rocks NO parcel was finally lost.

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I will happily do all in my power to resolve the situation to your satisfaction.

+++IMPORTANT+++
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