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Anthoinite

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PDM785248

Anthoinite

Rare Mineral

Description Tabs

Description
Locality: 
Gako, Ndiza, Muhanga District, Southern Province, Rwanda
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 3 × 2.8 cm
Description

Rich white powdery specimen of anthoinite from Gako, a remote uncommon locality in Rwanda. It is a good size sample that was collected in the 1960’s by professor Albert Delvaux (1919-1998).

Similar specimens from the same collection and the same batch have been analysed at the Royal Museum for Central Africa (Tervuren, Belgium) and have verify that is anthoinite.

Mineral Data
What's on the rock

Anthoinite

Formula: 
AlWO3(OH)3
Strunz: 
7.GB.35
Crystal System: 
Triclinic
Hardness: 
1.0
Streak: 
White
Type Locality: 
Mt Misobo Mine, Maniema, Democratic Republic of Congo (Zaïre)

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