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Goethite Var Samtblende & Calcite

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MNT134726

Goethite Var Samtblende & Calcite

ex Dr. F. Krantz (GER)
Classic Locality

Description Tabs

Description
Locality: 
Příbram District, Central Bohemian Region, Czech Republic
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.3 × 6 × 3.5 cm
Description

A nice old timer example of velvety surfaced botryoidal goethite var. samtblende aggregates with whiteish calcite crystals (in part reddish by hematite inclusions/coatings) on carbonate matrix from the famous Pribram deposit in Bohemia. Comes with pen and ink label. Backside sawn but unobtrusive.

Mineral Data
What's on the rock

Goethite

Formula: 
α-Fe3+O(OH)
Strunz: 
4.00.
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 5.5
Type Locality: 
Hollertszug Mine (Hollerter Zug Mine), Dermbach, Herdorf, Siegerland, Rhineland-Palatinate, Germany

Samtblende

Variety Of: 

Goethite

Formula: 
α-Fe3+O(OH)
Strunz: 
4.00.
Hardness: 
5.0 - 5.5

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

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