Manoel Ambrósio Ranch, São Geraldo do Araguaia, Pará, Brazil

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An opal deposit discovered in 1991.

~~http://sbg.igc.usp.br/rgb/vol30_down/3002/3002251.pdf.~~ [Link dead. Jul 2011]

Mineral List

Biotite
'Chlorite Group'
Cristobalite
Halite

Kyanite
Opal
var: Boulder Opal
var: Fire Opal

Opal
var: Jasper Opal
var: Precious Opal
Quartz
var: Chalcedony

15 entries listed. 7 valid minerals.

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 6th Jul 2011 16:35:05