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Li 7696ppm Ta 207ppm Pegmatite Araxa BR

Category: BASE METALS 
Product Code: AMIS 0355

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DOWNLOAD AMIS CERTIFICATE (PDF)
AMIS0355,Li 7696 ppm,Ta 207 ppm,Sn 487ppm,Volta Grande,brazil

Origin of Material: The material for AMIS0355 was provided by CIF Mineração S.A. (“CIF”), a subsidiary of AMG Advanced Metallurgical Group N.V.  It is from the Volta Grande tantalum, niobium, and tin mine (“Volta Grande”) in Minas Gerais state, Brazil. This mine also produces albite and feldspar products for the ceramic industry as an important by-product of mining. CIF has been mining this deposit for the last forty five years.The Volta Grande pegmatites occur in the Archaean Barbacena greenstone belt on the southern border of the São Francisco craton. The Volta Grande pegmatites form six sub-horizontal tabular bodies characterized by coarse to very coarse-grained spodumene, quartz, albite, microcline, and muscovite.

Mineral and Chemical Composition: The primary orebody consists of quartz, albite, spodumene, zinnwaldite, microcline, and lesser amounts of apatite, garnet, tantalite, microlite and cassiterite.

Recommended Concentrations and Limits1
(at two Standard Deviations)

Certified Concentrations

Li FUS   7696 ± 521 ppm
Li M/ICP  7343 ± 828 ppm
Ta XRF   207 ± 18 ppm
Sn FUS   469 ± 32 ppm
Sn XRF   487 ± 43 ppm
Nb M/ICP  49 ± 6 ppm
Rb FUS   3639 ± 360 ppm
Rb M/ICP  3422 ± 286 ppm
Specific Gravity 2.76 ± 0.12 

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VCS is a Reserve Bank Registered System Operator and a Member of Association of System Operators.