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Calcite With Mica & Rutile

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LGM607100

Calcite With Mica & Rutile

Ex Dr. Fuchs, Bonn, Germany
Classic Locality

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Description Tabs

Description
Locality: 
Simplon Railway Tunnel, Brig, Valais, Switzerland
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.5 × 5 × 4 cm
Weight: 
76.00gr
Description

A pristine cluster of snow-white calcite crystals with pearly luster. The crystals consist of smaller, parallel-grown subindividuals. The specimen has some beautiful details like the small rutile var. sagenite (pics 4 & 5).

A rare and highly sought-after locality specimen from the construction period of the Simplon railway tunnel. The two one-way tubes were built in 1898–1905 und 1912–1921. Nearly 20 kms long, it was worlds longest tunnel until the end of the 1970s.
From Dr. Fuchs collection, certainly from old Dr. Krantz stock, Bonn, Germany.

Mineral Data
What's on the rock

Calcite

Polymorph of: 
Aragonite and Vaterite
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Mica

Group Parent: 
Mica Group

Rutile

Formula: 
TiO2
Strunz: 
4.DB.05
Crystal System: 
Tetragonal - Ditetragonal Dipyramidal
Hardness: 
6.0 - 6.5
Type Locality: 
Rutile locality, Horcajuelo de la Sierra, Madrid, Spain

Seller Information

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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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+++IMPORTANT+++
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