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Tourmaline Var Indicolite With Calcite

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LGM818963

Tourmaline Var Indicolite With Calcite

Ex Dr. Krantz, Bonn, Germany
With Antique Label

Description Tabs

Description
Locality: 
Utö Island, Haninge, Stockholm County, Sweden
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 3 × 2.5 cm
Weight: 
23.00gr
Description

Sea-blue, striated tourmaline var indicolite on quartz matrix, accompanied by white calcite crystals and an unidentified, deep blue mineral (see pics 4 & 5).

From old Dr. Krantz stock, comes with antique label.

Mineral Data
What's on the rock

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Crystal System: 
Trigonal
Hardness: 
7

Indicolite

Variety Of: 

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Hardness: 
7
Hardness: 
0.0

Calcite

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

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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