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Li 2.94% Ta 187ppm Sn 573ppm Pegmatite Brazil

Category: BASE METALS 
Product Code: AMIS 0656

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AMIS0656 Li 2.94% Ta 187ppm Sn 573ppm Pegmatite Brazil

Origin of Material

 

Materials made using ore sourced from the Volta Grande mine was provided by AMG Mineração S.A. (“MIBRA”),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. AMG Mineração produces Spodumene Concentrate, Tanttalum Concentrate, Tin in ingots, Feldspar and Abite. The sample of spodumene concentrate was produced by flotation, after magnetic separation. The milled pegmatite was processed in a magnetic separator, to remove iron minerals, mainly silicates. The non magnetic pegmatite was floated (rougher, cleaner and recleaner).

 

Approximate Mineral and Chemical Composition

 

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. The predominant lithium mineral is spodumene.

 

 

Recommended Concentrations and Limits

(at two Standard Deviations)

Certified Concentrations

 

Analyte Method Certified (µ)6 (2s)8 ± Unit

Li 4A_MICP1 2.94 0.29 %

Li FUS2 3.07 0.32 %

Ta 4A_MICP 187 35 ppm

Ta FUS 179 26 ppm

Nb 4A_MICP 26 5 ppm

Nb FUS 26 5 ppm

As 4A_MICP 2 1 ppm

Sb 4A_MICP 4 0.6 ppm

Sb FUS 5 2 ppm

Sn FUS 573 44 ppm

F SIE3 1153 182 ppm

S 4A_MICP 0.019 0.003 %

SG SG4 3.15 0.22 Dimensionless

Ba 4A_MICP 17 2 ppm

Be 4A_MICP 273 45 ppm

Bi 4A_MICP 2 0.5 ppm

Co 4A_MICP 3 0.5 ppm

Cs 4A_MICP 86 23 ppm

Cu 4A_MICP 25 6 ppm

Ga 4A_MICP 140 9 ppm

Hf 4A_MICP 7 2 ppm

K 4A_MICP 3262 326 ppm

Lu 4A_MICP 0.03 0.03 ppm

Mn 4A_MICP 1006 102 ppm

Mn FUS 1043 85 ppm

Mo 4A_MICP 1 0.1 ppm

Na 4A_MICP 3879 246 ppm

Ni 4A_MICP 16 5 ppm

P 4A_MICP 1427 189 ppm

Pb 4A_MICP 24 4 ppm

Sc 4A_MICP 0.7 0.4 ppm

Si FUS 29.72 1.1 %

Ti 4A_MICP 305 20 ppm

Tl 4A_MICP 7 0.7 ppm

V 4A_MICP 8 0.9 ppm

W 4A_MICP 1 0.4 ppm

Yb 4A_MICP 0.3 0.2 ppm

Zn 4A_MICP 58 6 ppm

Zr 4A_MICP 32 8 ppm

 

Recommended Concentrations and Limits

(at two Standard Deviations)

Certified Concentrations    

 

Analyte

Method

Certified (µ)6

 (2s)8 ±

Unit

Li

4A_MICP1

2.94

0.29

%

Li

FUS2

3.07

0.32

%

Ta

4A_MICP

187

35

ppm

Ta

FUS

179

26

ppm

Nb

4A_MICP

26

5

ppm

Nb

FUS

26

5

ppm

As

4A_MICP

2

1

ppm

Sb

4A_MICP

4

0.6

ppm

Sb

FUS

5

2

ppm

Sn

FUS

573

44

ppm

F

SIE3

1153

182

ppm

S

4A_MICP

0.019

0.003

%

SG

SG4

3.15

0.22

Dimensionless

Ba

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