Merume river, Kamakusa, Mazaruni District, Guyana

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Merumite, supposedly Cr2O3.H2O [Am. Mineral., 34, 339
(1949)] is shown to consist of fine-grained intergrowths of eskolaite
(Cr2O3) (predominant) with 4 new minerals. It occurs as black
rounded grains in alluvial gravels of the drainage basin of the Merume River, Guyana.

U. S. Geol. Surv. Prof. Pap. (1976), 887. l - 29

Mineral List:

Bracewellite (TL)
Eskolaite

Grimaldiite (TL)
Guyanaite (TL)

Mcconnellite (TL)

5 entries listed. 5 valid minerals. 4 type localities (valid minerals).

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