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Jaguaraçu pegmatite (José Miranda mine; José Pinto mine; Carneirinho mine), Jaguaraçu, Minas Gerais, Brazil

Milarite
Jaguaraçu pegmatite, Jaguaraçu, Minas Gerais, Brazil

Photo: O. Dziallas
The Jaguaracu pegmatite, discovered during World War II, has produced what are arguably the world's finest crystals of milarite. Excellent albite, euxenite, monazite, muscovite and zircon crystals have been found there as well.

Mineral List

Albite
var: Cleavelandite
'Almandine-Spessartine Series'
Anatase
Beryl
Biotite
Carlosbarbosaite (TL)
Cassiterite
Cerussite
Chernovite-(Y)
Churchite-(Y)
Columbite-(Fe)
Elbaite
Euxenite-(Y)
Fluorapatite
Fluorite
Hematite
Ilmenite
Kaolinite
'K Feldspar
var: Adularia'

Lepidolite
Magnetite
Microcline
var: Amazonite
Milarite
Minasgeraisite-(Y) (TL)
Monazite-(Ce)
Montmorillonite
Muscovite
Nontronite
Orthoclase ?
Pyrite
Pyromorphite
Quartz
Schorl
Spodumene
Staringite
'Tourmalinated Quartz'
Uraninite
Zircon


40 entries listed. 33 valid minerals. 2 type localities (valid minerals).

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References

- Foord, E. E., Gaines, R. V., Crock, J. G., Simmons, W. B., Jr., Barbosa, C. P. (1986): Minasgeraisite, a new member of the gadolinite group from Minas Gerais, Brazil. American Mineralogist. 71, 603-607
- Mineralogical Record (1994) 25, 165-170
- D. Atencio, A. C. Roberts, M. A. Cooper, L. A. D. Menezes Filho, J. M. V. Coutinho, J. A. R. Stirling, K. E. Venance, N. A. Ball, E. Moffatt, M. L. S. C. Chaves, P. R. G. Brandão, and A. W. Romano (2012): Carlosbarbosaite, ideally (UO2)2Nb2O6(OH)2•2H2O, a new hydrated uranyl niobate mineral with tunnels from Jaguaraçu, Minas Gerais, Brazil: description and crystal structure. Mineralogical Magazine, 76, 75-90.

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Copyright © Jolyon Ralph and Ida Chau 1993-2012. 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.
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