Table updated on 5th September 2008
Reference
Material
 Matrix Type
Assigned Values &
95% Confidence Intervals
Gold (ppm)
 Available
packaging (2.5kg jars, 30g & 50g sachets)
Quantity of
2.5kg Jars
available
AuBlank25
< 0.002
 50g sachets only
 100 sachets
AuBlank26
< 0.002
 50g sachets only
 3200 sachets
OxA71
 Oxide
 0.0849 (+/- 0.0022)
 Jars and sachets
 >500
OxC72
 Oxide
 0.205 (+/- 0.003)
 Jars and sachets
 >500
OxD73
 Oxide
 0.416 (+/- 0.005)
 Jars and sachets
 >500
SE29
Sulphide (2.5%S)
0.597 (+/- 0.007)
Jars and sachets
 249
OxE74
 Oxide
 0.615 (+/- 0.006)
 Jars and sachets
 >500
OxF65
 Oxide
 0.805 (+/- 0.014)
 Jars and sachets
 >500
SF30
Sulphide (2.8% S)
 0.832 (+/- 0.008) Jars and sachets
 47
KH1
Sulphide (3.3 % S)
0.85 (+/- 0.02)
30g sachets only
Please enquire
OxG70
 Oxide
 1.007 (+/- 0.013) Jars and sachets
 >500
SG31
Sulphide (2.8 % S)
0.996 (+/- 0.011)
Jars and sachets
 243
OxH55
Oxide
1.282 (+/- 0.015)
 Jars and sachets 163
SH35
Sulphide (3.0 % S)
1.323 (+/- 0.017)
Jars and sachets 382
WG2 Oxide 1.38 (+/- 0.03)
50g sachets only
120
Si42
 Sulphide (3.0 % S)
 1.761 (+/- 0.021)
 Jars and sachets
 >500
Oxi67
 Oxide
 1.817 (+/- 0.024)
 Jars and sachets
 >500
Oxi54
 Oxide
 1.868 (+/- 0.026)
 Jars and sachets
 45
OxJ64
 Oxide
2.366 (+/-0.031)
 Jars and sachets >500
SJ39
Sulphide (3.0 % S)
2.641(+/-0.033)
 Jars and sachets >500
HiSilK2
Siliceous (1.0 % S)
3.474 (+/-0.034)
 Jars and sachets >500
OxK69
 Oxide
 3.583 (+/- 0.033)
 Jars and sachets
 >500
SK33
 Sulphide (3.2 % S) 4.041(+/-0.041) Jars and sachets
 10
SK43
 Sulphide (3.2 % S)
 4.086 (+/- 0.036)
 Jars and sachets
 >500
OxL63
 Oxide
5.865 (+/-0.055)
 Jars and sachets >500
SL46
 Sulphide (3.3 % S)
 5.867 (+/- 0.066)
 Jars and sachets >500
OxN62 Oxide
7.706 (+/-0.046)
 Jars and sachets >500
SN38
Sulphide (3.2 % S)
8.573 (+/-0.061)
 Jars and sachets >500
HiSilP1
Siliceous (2.0 % S)
12.05 (+/-0.13)
 Jars and sachets >500
OxP61
 Oxide
14.92 (+/-0.13)
 Jars and sachets >500
SP37
Sulphide (3.5 % S)
18.14 (+/-0.15)
 Jars and sachets >500
SQ36
Sulphide (3.5 % S)
30.04 (+/-0.24)
 Jars and sachets >500

Certificates of Analysis for Older Reference Materials
That Are Now Completely Sold But Are Still Being Used.
(majority of certificates are in PDF format)

Please note that "30g" and "50g" are nominal values only. Approximately 2 grams extra are included in each sachet so that it is easier to scoop out the nominal weight without having to scrape out the last traces of powder in the bottom of the sachet.

The sachets are available with either Labcheck or Geocheck labels. Labcheck labels have the name of the Reference Material (e.g. WG2) clearly stated on the label. Geocheck labels do not have the name of the Reference Material stated on the label but do have a unique number for ready identification by the purchaser. Jars are packed in cartons containing 6 jars (i.e. 15 kg) but the minimum order is one jar.

Customized Reference Materials

Do you have mine material or an exploration target that has an unusual matrix? We may be able to produce a Reference Material that has a similar mineral composition to your material. We would make this from materials known to be stable and from screened minerals that contain finely divided gold. The matrix-matched mineral components will be blended together and packaged in sachets or jars (your preference) and a formal homogeneity test carried out. Samples can be sent out for consensus testing and a formal certificate supplied if required. To obtain a quote, contact us directly or your nearest ROCKLABS agent.