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Hollandite

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CLB188440

Hollandite

directly from the mines, West Africa trip 2012, seller's oewn collection

Description Tabs

Description
Locality: 
Tambao Mine, Gorom-Gorom, Sahel Region, Burkina Faso
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.3 × 7.1 × 6 cm
Description

Very nice, shiny black, botryoidal hollandite 'kidney ore' from the Tambao mine in Burkina Faso.

Mineral Data
What's on the rock

Hollandite

Formula: 
Ba(Mn4+6Mn3+2)O16
Strunz: 
4.DK.05a
Hardness: 
4.0 - 6.0
Streak: 
Black
Type Locality: 
Gowari Wadhona Mine, Chhindwara District (Chindawara District; Chindwara District), Jabalpur Division, Madhya Pradesh, India

Seller Information

Payment options: offline, paypal_wpp, paypal_wps