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Topaz

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MNT679443

Topaz

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

Description Tabs

Description
Locality: 
Ropp Tin Mines, Bukuru, Jos Plateau, Plateau, Nigeria
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
1.7 × 1.4 × 1.4 cm
Description

Old timer from Nigeria: a single topaz crystal labeled to come from the Rukuba Tin Mining Company, which existed from 1912 to 1942. This company mined cassiterite as tin ore at the Jos Platau in several mines. It is not possible to assign it to a particular mine, though topaz from the Ropp Tin mine looks very similar. The label was written for a lot of 3 crystals but only this one was left in the box.

 

Mineral Data
What's on the rock

Topaz

Formula: 
Al2(SiO4)(F,OH)2
Strunz: 
9.AF.35
Crystal System: 
Orthorhombic - Dipyramidal
Hardness: 
8.0
Streak: 
White

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

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