Geochemistry Guide 2026

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 mining lifecycle.

The oxidizing borate fusion method (XRF76) is suitable for mineralized samples with sulphides, metal concentrates, metallurgical samples as well as ferro alloys, with the exception of FeSi. The default oxidizer is NaNO3, some sites offer LiNO3 to enable Na2O reporting. Please contact your SGS customer service agent.

GO_XRF72CR ANALYTE

GO_XRF76 ANALYTE

REPORTED AS

RANGE

REPORTED AS

STANDARD

EXTENSION

EXTENSION WITH REE 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

Al 2 O 3 As 2 O 3

X

X

X

0.01 - 100% 0.01 - 10% 0.01 - 40% 0.01 - 20% 0.01 - 80% 0.02 - 50% 0.01 - 100% 0.01 - 75% 0.01 - 75% 0.01 - 25% 0.02 - 10% 0.02 - 10% 0.5 - 50% 0.01 - 100% 0.02 - 10% 0.01 - 10% 0.01 - 40% 0.02 - 50% 0.1 - 80% 0.01 - 100% 0.01 - 50% 0.1 - 58% 0.01 - 50% 0.02 - 50% 0.01 - 100% 0.01 - 40% 0.01 - 100% 0.02 - 50% 0.02 - 35% 0.01 - 25% 0.1 - 100% 0.02 - 10% 0.01 - 100% 0.2 - 90% 0.01 - 20% 0.01 - 50% 0.01 - 3% 0.01 - 80% 0.01 - 1% 0.01 - 10% 0.01 - 70% 0.02 - 10% 0.01 - 70% 0.02 - 40% - 10 - 100%

Al

As Ba Ca Co

As 2 O 3 optional

As

Optional

Optional

Optional

BaO CaO

Ba

BaO

X

X X X X X X

X

Bi

Bi 2 O 3 CaO Ce 2 O Co 3 O 4 Cr 2 O 3 CuO Cs 2 O Dy 2 O 3 Eu 2 O 3

Co 3 O 4 optional

Ca Ce Co

X

X X X X X

Cr

Cr 2 O 3

Cu Fe

CuO optional

Optional

Fe 2 O 3

Cr

X X

K

K 2 O

Cu Cs Dy Eu

Mg Mn

MgO MnO Na 2 O

Optional

Optional

X X

Na

Ni

NiO optional

F

F

Optional

Optional

Optional

P

P 2 O 5

Fe Gd

Fe 2 O 3 Gd 2 O 3

X

X

X X

Pb

PbO optional

Si

SiO 2 SO 3 TiO 2 V 2 O 5

Hf

Optional

Optional

Optional

HfO 2

S

K

X

X

X X X X

K 2 O

Ti

La

La 2 O 3 MgO Mn 3 O 4 MoO 3 Na 2 O Nb 2 O 3

V

Mg Mn Mo Na Nb Nd

X X

X X X

Zn

ZnO optional

LOI (1000 0 C)*

LOI

Per Oxidizer

Per Oxidizer

Per Oxidizer

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

X X

NiO

X

X X X X X X

Ni

Nd 2 O 3

P

P 2 O 5 PbO

X X

X X

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.

Pb

Pr

Pr 6 O 11

Rb Sb

RbO

X X X X X X X X X X X X

Sb 2 O 3

SOLUBLE FLUORSPAR PACKAGE CODE

Si

SiO 2

X

X X

ELEMENT

LIMIT(S)

DESCRIPTION

Sm

Sm 2 O 3

≥ 0.1% ≥ 10%

EDTA Titration

GC_CLA27V

CaCO 3

Sn

SnO 2

CaF 2

Calculation

S

SO 3 SrO

X

X X

Sr Ta Th

Optional

Generic / multi-element ores Generic ore, concentrate and metallurgical materials compatible analytical methods with a wide dynamic range using XRF.

Ta 2 O 5 ThO 2 TiO 2 U 3 O 8 V 2 O 5 WO 3 Y 2 O 3 ZnO ZrO 2

Ti U

X

X

V

X

X

GO_XRF70V PYROSULPHATE FUSION / XRF BASE METAL PACKAGE (10 ELEMENTS) Co 0.01 - 100% Mn 0.01 - 100%

W

W

0.02 - 100%

Y

X X

Cr 0.01 - 100% Cu 0.01 - 100% Fe 0.02 - 100%

Mo 0.005 - 100%

Zn 0.01 - 100%

Zn

X

X X

0. 01 - 100%

Ni

Zr

Optional Optional

Pb 0.01 - 100%

LOI (1000 0 C)*

Optional

Optional

*G_PHY01V or G_PHY02V

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