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Olmiite on Manganese Ore Matrix, N’Chwaning Mine lll, Kuruman, Kalahari Manganese Field, Northern Cape, South Africa

$58.88 USD

 

“One of the most important mineral discoveries in the Kalahari Manganese Field during the past 15 years has been that of the Olmiite. (Ref: The Kalahari Manganese Field the adventure continues - pg.258)

Olmiite has the chemical formula:

CaMn[SiO3(OH)](OH)

Dimensions: 3.5cm (1.3”) x 2.5cm (0.9”)

Weight: 18g


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