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AMIS – African Mineral Standards AMIS – African Mineral Standards
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  • CERTIFICATES & REPORTS
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Li 7268ppm Ta 214ppm Pegmatite Araxa BR

Li 7268ppm Ta 214ppm Pegmatite Araxa BR

R60.22 – R3,357.92

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SKU: AMIS 0355 Category: BASE METALS
  • Description
  • Additional information

Description

DOWNLOAD AMIS CERTIFICATE (PDF)

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.

Approximate 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 Limits
(at two Standard Deviations) Certified Concentrations

Analyte Method Certified (µ) (2s) ± Unit
Li 4A_MICP 7268 836 ppm
Nb 4A_MICP 49 8 ppm
Nb FUS 47 8 ppm
Rb 4A_MICP 3347 468 ppm
Rb FUS 3607 372 ppm
Sn 4A_MICP 75 19 ppm
Sn FUS 470 38 ppm
Sn XRF 461 88 ppm
Ta FUS 214 42 ppm
SG SG 2.75 0.13 Dimensionless
S 4A_MICP 0.040 0.003 %
Al FUS 8.06 0.29 %
Ba 4A_MICP 35 12 ppm
Ba FUS 37 9 ppm
Be 4A_MICP 156 24 ppm
Be FUS 163 16 ppm
Bi 4A_MICP 0.9 0.2 ppm
Ca 4A_MICP 4532 506 ppm
Ca FUS 4868 415 ppm
Ce FUS 5 0.8 ppm
Co 4A_MICP 51 6 ppm
Co FUS 51 4 ppm
Cr FUS 295 30 ppm
Cs 4A_MICP 265 41 ppm
Cs FUS 259 19 ppm
Cu 4A_MICP 331 23 ppm
Cu FUS 346 26 ppm
Dy 4A_MICP 0.8 0.1 ppm
Dy FUS 0.9 0.2 ppm
Fe 4A_MICP 1.18 0.087 %
Fe FUS 1.25 0.067 %
Ga 4A_MICP 72 6 ppm
Ga FUS 75 6 ppm
Gd 4A_MICP 1 0.2 ppm
Gd FUS 1 0.2 ppm
Hf 4A_MICP 3 0.3 ppm
Hf FUS 4 1 ppm
K 4A_MICP 1.26 0.16 %
K FUS 1.33 0.091 %
La FUS 3 0.6 ppm
Lu 4A_MICP 0.03 0.02 ppm
Mg 4A_MICP 8374 1248 ppm
Mg FUS 9089 709 ppm
Mn 4A_MICP 976 112 ppm
Mn FUS 1000 19 ppm
Mo 4A_MICP 1 0.2 ppm
Na 4A_MICP 2.54 0.21 %
Nd 4A_MICP 2 0.5 ppm
Nd FUS 2 0.6 ppm
Ni 4A_MICP 145 15 ppm
Ni FUS 150 22 ppm
P 4A_MICP 413 32 ppm
P FUS 431 85 ppm
Pb 4A_MICP 6 2 ppm
Pr 4A_MICP 0.5 0.1 ppm
Pr FUS 0.6 0.4 ppm
Sb 4A_MICP 0.4 0.08 ppm
Sc 4A_MICP 2 0.4 ppm
Si FUS 33.46 0.97 %
Sm 4A_MICP 1 0.2 ppm
Sm FUS 1 0.4 ppm
Tb 4A_MICP 0.2 0.06 ppm
Tb FUS 0.2 0.09 ppm
Te 4A_MICP 0.08 0.03 ppm
Th 4A_MICP 4 1 ppm
Th FUS 5 1 ppm
Ti 4A_MICP 385 38 ppm
Ti FUS 389 65 ppm
Tl 4A_MICP 27 4 ppm
Tl FUS 29 0.9 ppm
U 4A_MICP 5 2 ppm
U FUS 6 0.9 ppm
V 4A_MICP 15 2 ppm
V FUS 16 3 ppm
W 4A_MICP 2 0.3 ppm
Y 4A_MICP 4 1 ppm
Y FUS 5 0.8 ppm
Yb 4A_MICP 0.2 0.04 ppm
Yb FUS 0.2 0.09 ppm
Zn 4A_MICP 85 9 ppm
Zn FUS 92 27 ppm
Zr 4A_MICP 17 3 ppm
Zr FUS 22 6 ppm

Major Oxides
Certified Concentrations (at two Standard Deviations)

Analyte Method Certified (µ) (2s) ± Unit
Al2O3 FUS 15.26 0.56 %
Al2O3 XRF 15.46 0.18 %
CaO FUS 0.677 0.06 %
CaO XRF 0.667 0.02 %
Cr2O3 FUS 0.044 0.004 %
Fe2O3 FUS 1.80 0.088 %
Fe2O3 XRF 1.79 0.071 %
K2O FUS 1.58 0.056 %
K2O XRF 1.58 0.034 %
MgO FUS 1.52 0.11 %
MgO XRF 1.49 0.067 %
MnO FUS 0.13 0.00 %
MnO XRF 0.13 0.01 %
Na2O XRF 3.61 0.26 %
P2O5 FUS 0.099 0.02 %
P2O5 XRF 0.099 0.01 %
SiO2 FUS 71.35 1.9 %
SiO2 XRF 71.90 1.2 %
TiO2 FUS 0.065 0.01 %
TiO2 XRF 0.067 0.01 %
V2O5 FUS 0.003 0.001 %

Additional information

Weight0.01 kg
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