Geochemistry Guide 2024

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Chromite Ore XRF is the most recognized form of analysis for chromite ores in a high dilution borate fusion set up and is used throughout the entire lifecycle.

GO_XRF72CR Minimum sample 1g.

ANALYTE

REPORTED AS

RANGE

Al 2 O 3

0.02 - 100% 0.02 - 1% 0.02 - 20% 0.02 - 40% 0.02 - 5% 0.02 - 60% 0.02 - 5% 0.02 - 100% 0.02 - 10% 0.02 - 50% 0.02 - 50% 0.05 - 10% 0.02 - 10% 0.02 - 10% 0.02 - 5% 0.05 - 100% 0.02 - 1% 0.02 - 50% 0.02 - 1.8% 0.02 - 5% -10 - 100%

Al

As 2 O 3 optional

As Ba Ca Co

BaO CaO

Co 3 O 4 optional

Cr 2 O 3

Cr

Cu Fe

CuO optional

Fe 2 O 3

K 2 O

K

Mg Mn

MgO MnO Na 2 O

Na

Ni

NiO optional

P 2 O 5

P

Pb

PbO optional

Si

SiO 2 SO 3 TiO 2 V 2 O 5

Bauxite - additional characterizations Reactive Silica and Available Alumina using standard bomb digest followed by ICP-OES analysis (GO_ICP10V500). Total Organic Carbon (non Carbonate) TOC and Total Carbon using IR combustion refer to page 30. FTIR based characterization GE_FTIR73BX (below) which includes the typical Bauxite minerals as well as phases correlated to chemistry.

S

Ti

V

Zn

ZnO optional

LOI (1000 0 C)*

LOI

Dried only *G_PHY01V or G_PHY02V Note: Additional grinding might be needed.

GE_FTIR73BX Total Alumina 40.0 - 55.0% Available Alumina 5.0 - 60.0% Total Silica 1.0 - 60.0% Reactive Silica 1.0 - 29.0%

Fluorspar SGS has the methodology to support testing of fluorspar material. Due to the nature of the test this scheme is only applicable to acid grade or other soluble fluorspar products.

Total Titanium Oxides 1.0 - 3.5%

Quartz 1.0 - 100.0% Goethite 1.0 - 20.0% Kaolinite 1.0 - 100.0%

Total Iron Oxides 1.0 - 29.0% Obtain quantitative infra-red spectral data using an ATR based system including total oxide weight % calibrated against borate fusion XRF and reactive silica and aluminium calibrated against classical bomb digest. Additional compounds available upon request at extra cost.

SOLUBLE FLUORSPAR PACKAGE CODE(S)

ELEMENTS/ LIMIT(S)

DESCRIPTION EDTA Titration

CaCO 3 ( ≥ 0.1%)

GC_CLA27V

CaF 2 ( ≥ 10%)

Calculation

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