Rio Mayo, Mercaderes, Cauca Department, Colombia

Standard Detailed By Chemistry Search Google

Alluvial gem corundum deposits.

Ref.:
- Sutherland, F.L., Duroc-Danner, J.M., and Meffre, S. (2008): Age and origin of gem corundum and zircon megacrysts from the Mercaderes–Rio Mayo area, South-west Colombia, South America. Ore Geology Reviews 34, 155-168.

Mineral List:

Almandine
Anthophyllite
Apatite-(CaF)
Augite
Böhmite ?
Corundum
var: Ruby

Corundum
var: Sapphire
Grossular
Hematite
'Hornblende'
Ilmenite
Kornerupine

Magnetite
'Olivine'
Pyrope
Rutile
Titanite
Zircon

18 entries listed. 14 valid minerals.

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