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Goethite Var Glaskopf

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MNT57115

Goethite Var Glaskopf

Description Tabs

Description
Locality: 
Oberkaltenbach, Ründeroth, Engelskirchen, Cologne, North Rhine - Westphalia, Germany
Size Range: 
Cabinet (10-18 cm)
Size: 
11.5 × 8.5 × 5 cm
Description

An old timer from a german collection dating around 1900-1915: goethite/limonite var Glaskopf with in part iridescent surface in rainbow colours from the old Ründeroth iron ore district in Middle Devonian sedimentary host rocks.

Although a common mineral this one is quite aesthetic as well as historically interesting and quite rare to see around. From one of the numerous old mines near Oberkaltenbach south of the township of Ründeroth.

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

Glaskopf

Variety Of: 

Goethite

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

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