A Altc
tAfrican
ltv\,
MineralStandards
R E F E R E N C E] \ I A I E RA L
F O R
A F R
C A N
AfricanMineralStandards
Certificateof Analysis
MerenskyFeedGrade
PlatinumOre Reference
Material
SupplementaryCertificatefor the Major Elements
AMlS0034
Concentrations
andtwo "Between
Recommended
Laboratory"StandardDeviations
Certif i ed Concentrati ons
4t203
CaO
Cr2O3
Fe2O3
K20
LilSO
[,rno
Na2O
si02
-lio2
12.46% +7.02o/o +0.90%
10.24yo +0.224/0
'16.450/o +0.16% +1.01%
49.92o/o +0.27%
0.66%
0.300/o
0.04yo
0.2ayo
0.021o
0.480/o
0.02v.
0.08%
0.760/o
0.02%
IndicatedMeans
P20s
0.040/o
LOI
0.93%
1
Tel$27(0111
9217000 laxt+l7|o)I\92)/A27
P0 8orE56.sando.1600
Av€nue.
sando.1600
5outhAtr.a
E-mail:info@amls
coza Web!!!Wam5.oz. l0 ELc.tmn
AC v5onof9elPont id6l'air(hi0 ogy(PtyltLd RegN0it39l0n0l01/0/ n ,{40d..u
DredcEECGrcso,lcto),CJHoEleldDKeri.iLyDralRiJ.m.yerNRobEoi.Ml9mrhr"rHSieiqrrs?:ie..e.lvas:Lold5.0Ulrns
O R E S
Intended Use: AMIS0034 is suitable for monitoring the accuracy of a single analysis for the
major elements in the Merensky or other similar mafic rocks. The material can be used for routine
quality control by inserting within a batch of samples, method development and for the calibration
of equipment.
AMIS0034, has also been certified for the PGE’s, Co, Cu, Cr, Ni and Specific Gravity.
The recommended mean and "Between Lab" standard deviations for this standard reflect the
average results from the laboratories that participated in the round robin. Slight variations in
analytical procedures between laboratories will reflect as slight biases to the recommended
concentrations and this is acceptable. Good laboratories however will report results within the two
standard deviation levels with a failure of <10 %.
Origin of Material: This standard was made using Merensky material from the western limb of
the Bushveld Complex supplied by Anglo Platinum Limited. Platreef is a Pt/Pd/Ni/Cu ore. It is
primarily a PGE standard, but has also been certified for these other elements at the request of
customers.
Approximate Mineral and Chemical Composition: AMIS0034 comprises Merensky Reef hand
sorted underground with minor dilution from footwall and hanging wall. The Merensky Reef
comprises components of feldspathic pyroxenite, pyroxenite and anorthosite. Peak PGE values
are associated with a thin chromitite stringer. Mineralization in this Merensky Reef comprises 25% disseminated or net textured magmatic sulphides, predominantly pyrrhotite, pentlandite,
chalcopyrite and pyrite. The PGE’s occur as micron-sized satellite grains around but rarely within
the sulphides.
Mineral Composition: The other currently certified values for this material are:
Certified Concentrations*
Pt (Pb Collection)
Pt (NIS)
Pd (Pb Collection)
Pd (NIS)
Cu (P)
Cu (T/ICP)
Cu (XRF)
Ni (P)
Ni (T/ICP)
Ni (XRF)
Co (P)
Co (T/ICP)
Cr (XRF)
Specific Gravity
3.69
3.73
1.63
1.63
1532
1544
1551
1689
2079
2164
50
97
6016
3.11
±
±
±
±
±
±
±
±
±
±
±
±
±
±
0.36 g/t
0.38 g/t
0.18 g/t
0.14 g/t
78 ppm
100 ppm
92 ppm
108 ppm
148 ppm
116 ppm
6 ppm
8 ppm
330 ppm
0.2 g/cc
Provisional Concentrations*
Au (Pb Collection)
Au (NIS)
Rh
Ru (NiS)
Ir (NiS)
0.43
0.40
0.24
0.48
0.08
2
±
±
±
±
±
0.08 g/t
0.08 g/t
0.04 g/t
0.06 g/t
0.01 g/t
Indicated Means*
Cu (F)
Cr (T/ICP)
1515 ppm
5222 ppm
*data for these elements are available on a separate certificate.
Appearance: The material is a very fine light grey powder (Corstor colour chart - 5Y 7/1).
Method of Preparation: The material was crushed, dry-milled and air-classified to 100% <54um.
It was then blended in a bi-conical mixer, systematically divided and then sealed into 1kg
Laboratory Packs. Explorer Packs are subdivided from the Laboratory packs as required.
Samples were randomly selected for homogeneity testing and third party analysis. Statistical
analysis of the consensus test results were carried out by an independent statistician Dr BW
Smee.
Method of Analysis:
1. Multi element XRF scan.
Method of Certification: Thirteen laboratories were each given eight packages of sample
selected from throughout the batch.
Final limits were calculated after first determining if all data was compatible within a spread
normally expected for similar analytical methods done by reputable laboratories. Data from any
one laboratory was removed from further calculations when the mean of all analyses from that
laboratory failed a t test of the global means of the other laboratories. The means and standard
deviations were calculated using all remaining data. Any analysis that fell outside of the mean ±2
standard deviations was removed from the ensuing data base. The mean and standard
deviations were again calculated using the remaining data. This method is different from that
used by Government agencies in that the actual “between-laboratory” standard deviation is used
in the calculations. This produces upper and lower limits that reflect actual individual analyses
rather than a grouped set of analyses. The limits can therefore be used to monitor accuracy from
individual analyses, unlike the Confidence Limits published on other standards. Standards with an
RSD of near or less than 5 % are certified, RSD’s of between near 5 % and 15 % are Provisional,
and RSD’s over 15 % are Indicated. The tables below represent raw data received from the
laboratories.
Lab Code
A
A
A
A
A
A
A
A
B
B
B
B
B
B
B
B
C
C
C
C
C
C
C
C
Al2O3
Percent
13.30
13.30
13.30
13.30
13.30
13.30
13.30
13.30
13.21
13.49
12.59
13.51
12.70
13.55
13.19
13.04
12.20
12.06
12.00
12.04
12.17
12.10
12.00
12.13
CaO
Percent
6.92
6.94
6.93
6.93
6.94
6.94
6.93
6.93
7.00
6.97
6.94
7.00
6.95
6.97
7.00
7.05
Cr2O3
Percent
0.87
0.87
0.87
0.88
0.87
0.87
0.87
0.87
0.58
0.65
0.64
0.70
0.61
0.67
0.73
0.67
0.87
0.87
0.87
0.87
0.87
0.87
0.88
0.86
Fe2O3
Percent
10.32
10.35
10.33
10.32
10.35
10.33
10.33
10.32
9.55
9.78
9.14
9.54
9.02
9.62
10.35
9.35
10.17
10.20
10.15
10.20
10.24
10.15
10.23
10.26
K2O
Percent
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.23
0.22
0.24
0.23
0.23
0.23
0.23
0.16
0.15
0.16
0.16
0.16
0.16
0.16
0.16
MgO
Percent
16.20
16.30
16.20
16.20
16.20
16.20
16.20
16.30
16.08
16.35
15.29
16.16
15.29
16.23
16.45
15.88
16.60
16.52
16.50
16.52
16.43
16.60
16.60
16.65
3
MnO
Percent
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.16
0.15
0.15
0.14
0.15
0.17
0.15
0.14
0.14
0.14
0.14
0.15
0.14
0.15
0.14
Na2O
Percent
1.01
1.01
1.02
1.04
1.01
1.02
1.02
1.02
0.98
1.01
0.94
1.02
0.97
1.02
0.93
1.05
1.01
1.03
1.01
1.04
1.06
1.01
1.00
1.03
P2O5
Percent
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.04
0.03
0.04
0.05
0.03
0.04
0.05
0.03
0.01
0.01
0.02
0.03
0.01
0.02
0.01
0.01
SiO2
Percent
49.70
49.70
49.70
49.70
49.70
49.70
49.70
49.70
49.80
49.37
49.50
49.37
49.19
49.60
49.10
49.34
TiO2
Percent
0.27
0.27
0.27
0.27
0.27
0.27
0.27
0.27
0.22
0.23
0.23
0.25
0.22
0.23
0.25
0.24
0.23
0.23
0.23
0.23
0.22
0.23
0.24
0.23
LOI
Percent
0.63
0.66
0.62
0.67
0.67
0.65
0.63
0.66
Lab Code
D
D
D
D
D
D
D
D
E
E
E
E
E
E
E
E
F
F
F
F
F
F
F
F
G
G
G
G
G
G
G
G
H
H
H
H
H
H
H
H
I
I
I
I
I
I
I
I
J
J
J
J
J
J
J
J
K
K
K
K
K
K
K
K
L
L
L
L
L
L
L
L
M
M
M
M
M
M
M
M
Al2O3
Percent
12.71
12.75
12.83
12.75
12.80
12.76
12.82
12.86
12.20
12.12
12.19
12.16
12.12
12.23
12.21
12.17
12.20
12.30
12.20
12.30
12.30
12.30
12.30
12.30
12.57
12.53
12.30
12.40
12.42
12.62
12.76
12.44
12.52
12.56
12.48
12.54
12.54
12.44
12.58
12.50
13.00
13.00
12.95
13.00
13.00
13.00
13.00
13.00
12.20
12.20
12.10
12.50
12.30
12.50
12.20
12.20
11.59
11.87
12.34
12.00
12.10
11.83
12.19
11.77
12.72
12.67
12.70
12.78
12.73
12.77
12.65
12.65
12.37
12.31
12.22
12.41
12.38
12.31
12.44
12.26
CaO
Percent
7.08
7.08
7.12
7.08
7.11
7.08
7.12
7.13
7.03
7.07
7.05
7.13
7.14
7.14
7.05
7.08
6.97
6.97
6.96
6.98
6.99
7.01
6.98
6.99
7.21
7.28
7.19
7.19
7.23
7.23
7.32
7.35
7.21
7.24
7.25
7.24
7.21
7.25
7.25
7.23
6.84
6.84
6.85
6.83
6.87
6.83
6.85
6.82
6.97
7.02
6.89
6.96
7.05
7.05
7.12
6.98
6.60
6.66
6.83
6.76
6.74
6.74
6.76
6.74
7.20
7.14
7.12
7.15
7.17
7.27
7.12
7.15
6.83
6.84
6.79
6.90
6.84
6.77
6.91
6.81
Cr2O3
Percent
0.92
0.91
0.91
0.91
0.94
0.92
0.90
0.91
0.91
0.91
0.91
0.91
0.91
0.91
0.91
0.91
0.93
0.94
0.94
0.91
0.93
0.91
0.93
0.92
0.89
0.89
0.89
0.89
0.89
0.89
0.89
0.89
0.88
0.88
0.87
0.88
0.88
0.88
0.89
0.87
0.38
0.40
0.47
0.47
0.47
0.43
0.43
0.43
0.92
0.91
0.92
0.92
0.92
0.91
0.91
0.90
0.64
0.66
0.59
0.58
0.59
0.67
0.71
0.59
Fe2O3
Percent
10.25
10.21
10.27
10.20
10.26
10.21
10.27
10.30
10.35
10.39
10.33
10.36
10.54
10.40
10.24
10.33
10.20
10.20
10.20
10.30
10.30
10.30
10.30
10.30
10.49
10.49
10.49
10.39
10.49
10.29
10.19
10.39
10.35
10.38
10.35
10.43
10.40
10.39
10.40
10.38
10.20
10.25
10.20
10.20
10.15
10.15
10.20
10.20
10.20
10.30
10.10
10.20
10.40
10.40
9.99
10.40
9.69
9.88
10.17
10.09
10.11
10.07
10.05
10.02
10.03
10.04
10.09
10.13
10.16
10.09
10.27
10.20
9.96
9.92
9.84
9.95
9.94
9.93
10.04
9.82
K2O
Percent
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.25
0.24
0.23
0.23
0.24
0.25
0.24
0.24
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.25
0.24
0.24
0.24
0.24
0.24
0.25
0.23
0.23
0.23
0.25
0.23
0.22
0.22
0.22
0.23
0.21
0.21
0.21
0.21
0.21
0.21
0.21
0.21
0.20
0.22
0.21
0.21
0.22
0.21
0.23
0.21
0.20
0.20
0.22
0.22
0.22
0.22
0.22
0.22
0.24
0.23
0.23
0.23
0.23
0.23
0.24
0.23
0.23
0.23
0.23
0.23
0.23
0.23
0.23
0.23
MgO
Percent
16.44
16.44
16.56
16.46
16.53
16.45
16.54
16.58
16.74
16.79
16.72
16.73
17.05
17.02
16.79
16.70
16.10
16.20
16.20
16.20
16.20
16.20
16.20
16.20
16.74
16.74
16.58
16.30
16.74
16.33
16.74
16.74
16.36
16.43
16.29
16.45
16.34
16.44
16.40
16.37
16.15
16.20
16.15
16.20
16.15
16.15
16.20
16.25
16.40
16.40
16.50
16.40
16.40
16.80
16.80
16.60
15.44
15.55
15.85
15.77
15.65
15.70
15.73
15.77
15.58
15.59
15.63
15.69
15.69
15.69
15.46
15.64
16.78
16.79
16.67
16.94
16.81
16.71
16.93
16.69
4
MnO
Percent
0.17
0.16
0.17
0.16
0.17
0.16
0.17
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.17
0.16
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.15
0.17
0.15
0.16
0.16
0.17
0.16
0.16
0.15
0.15
0.16
0.15
0.16
0.15
0.16
0.15
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
Na2O
Percent
0.99
0.98
1.00
0.98
0.99
0.98
1.00
1.00
1.02
1.00
1.01
1.00
1.00
1.01
1.05
1.00
1.07
1.05
1.06
1.04
1.06
1.06
1.06
1.06
1.16
1.15
1.12
1.13
1.15
1.15
1.16
1.09
0.96
0.96
0.97
0.95
0.94
0.98
0.96
0.96
1.00
0.99
1.00
1.00
0.99
0.99
0.98
1.00
0.10
0.14
0.13
0.14
0.07
0.13
0.11
0.09
0.94
0.94
0.97
0.96
0.96
0.96
0.96
0.96
1.09
1.07
1.08
1.08
1.08
1.08
1.07
1.06
P2O5
Percent
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.03
0.03
0.03
0.04
0.04
0.04
0.04
0.04
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.02
0.03
0.01
0.02
0.04
0.02
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.04
0.02
0.03
0.02
0.03
0.03
0.03
0.04
0.04
0.04
0.04
0.04
0.04
0.03
0.04
SiO2
Percent
49.76
49.77
50.24
49.90
50.05
49.86
50.19
50.28
49.52
49.09
49.51
49.65
49.32
49.56
49.39
49.59
49.70
49.80
49.70
49.90
49.90
49.90
49.90
49.90
50.27
51.13
50.91
49.63
51.13
50.06
50.91
50.70
50.35
50.29
50.20
50.38
50.33
50.16
50.23
50.42
50.20
50.40
50.40
50.50
50.40
50.40
50.40
50.50
49.90
49.40
49.90
49.70
49.90
50.30
50.80
49.80
50.23
50.03
50.25
50.12
49.83
49.95
50.40
49.96
TiO2
Percent
0.28
0.28
0.29
0.28
0.28
0.27
0.28
0.28
0.27
0.27
0.26
0.27
0.27
0.27
0.27
0.27
0.26
0.26
0.26
0.26
0.26
0.26
0.26
0.26
0.28
0.28
0.28
0.27
0.28
0.27
0.27
0.27
0.30
0.29
0.29
0.28
0.29
0.30
0.29
0.29
0.27
0.27
0.27
0.27
0.27
0.28
0.27
0.27
0.27
0.28
0.27
0.27
0.28
0.28
0.28
0.27
0.20
0.22
0.22
0.22
0.22
0.22
0.22
0.22
0.26
0.27
0.27
0.27
0.27
0.27
0.26
0.26
0.24
0.24
0.24
0.24
0.24
0.24
0.24
0.24
LOI
Percent
1.09
1.22
1.27
1.20
1.08
0.94
1.00
1.22
0.94
0.96
0.88
0.90
0.91
0.88
0.97
1.00
0.89
0.86
0.90
0.88
0.87
0.90
0.85
0.85
0.85
0.89
0.83
0.95
0.90
0.94
0.83
0.92
0.83
0.82
0.80
0.83
0.84
0.85
0.84
0.83
1.09
1.11
1.09
1.25
1.11
0.93
1.13
1.08
1.30
1.50
1.20
1.10
1.40
1.20
1.10
1.40
Major element analysis results are displayed on a separate certificate.
Participating Laboratories: (Not in the same order as in the table of assays)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
ACME Analytical Laboratories Ltd., (Canada).
Activation Laboratories Ltd., (ActLabs, Ancaster, ON, Canada).
ALS Chemex South Africa ( Pty ) Ltd.
ALS Chemex, (Vancouver, Canada).
Assayers Canada, (Vancouver).
Genalysis Laboratory Services ( Pty ) Ltd., (Australia).
Geoscience Laboratories, (Geo Labs, Sudbury, Canada).
Geoservice Centre, Geolaboratory, (GTK. Finland).
OMAC Laboratories (Ireland).
Set Point Laboratories ( Pty ) Ltd (South Africa)
SGS Lakefield Research Africa ( Pty ) Ltd. (Joburg, South Africa)
SGS Welshpool (Australia).
Ultra Trace ( Pty ) Ltd. (Australia)
Availability: This product is available in Laboratory Packs containing 1kg of material and
Explorer Packs containing custom weights (from 50g to 250g) of material. The Laboratory Packs
are sealed bottles delivered in sealed foil pouches. The Explorer Packs contain material in
standard geochem envelopes, nitrogen flushed and vacuum sealed in foil pouches.
Legal Notice: This certificate and the reference material described in it have been prepared with
due care and attention. However African Mineral Standards, Set Point Technology (Pty) Ltd, Mike
McWha, Dr Barry Smee and Smee and Associates Ltd; accept no liability for any decisions or
actions taken following the use of the reference material.
18 October 2007
Certifying Officers:
African Mineral Standards:_______________________________________
Mike McWha
BSc (Hons), FGSSA, MAusIMM, Pr.Sci.Nat
Geochemist:____________________________________________________
Barry W. Smee
BSc, PhD, P.Geo, (B.C.)
5