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Calcite & Siderite

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MNT723484

Calcite & Siderite

ex Dr. F. Krantz, Bonn, GER; ex ?
Classic Locality

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Description
Locality: 
Český Krumlov, South Bohemian Region, Czech Republic
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10.2 × 6.7 × 5 cm
Weight: 
341.00gr
Description

Bohemian old timer: a specimen with calcite crystals on hematite bearing siderite labeled to be from the Steinwand Mine in Andre(a)sberg. This most probably refers to the abandoned village of Ondrejov u Kaplice near Ceský Krumlov in Bohemia. I could not find any information about the mine, but the Steinwand Mountain exists between Ondrejov and Jablonec (Ogfolderhaid). At the latter a lime kiln is known to have existed. Both villages were abandoned and the area was turned into a military training area in 1950. The Ceský Krumlov area has a long mining tradition.

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

Siderite

Formula: 
FeCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
Streak: 
White

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Terms & Conditions

Thank you for your interest in my offers! Payment is possible via Paypal, bank transfer or cash if you pick up the item(s) personally. Bank data will be provided after settling the auction/transaction(s) if needed.

In case you are not happy with a specimen, you may send it back within 4 weeks. After receipt, i will refund the price minus shipping costs. Please inform me before sending an item back. If you have any questions (or maybe complaints) please feel free to contact me.

Best regards Roger

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