Certified Reference Materials

Rocklabs Certified Reference Materials are recognized as being the most accurate and reliable reference materials globally and certified for Gold, Silver and Platinum Group Elements

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Features

Accuracy that leaves chance in the dust.

Rocklabs is the world-leading producer of high-quality certified reference materials (CRMs) for the gold, silver, platinum, and palladium minerals industries. Used by laboratories and exploration companies worldwide, our reference materials are an accurate and reliable way to determine quality assurance and control management in conjunction with sample testing. CRMs (also known as laboratory standards), are pulverised rock with known mineral content, suitable for analysis by fire assay or aqua regia digest. The final values are always assigned by an independent statistician, and a certificate, which includes details of the production and characterisation of the reference material, is issued with all sachets and jars. Our professional team of chemists, geologists and statisticians are on hand to advise on the use of reference materials and the analysis of results to enable you to make better mining decisions.

Reference Materials Gallery box 1440x880

Certificates & Specifications

Reference Materials Certified for Pt, Pd and Au

Material	Assigned Values & 95% Confidence Intervals			Packaging
	Platinum (ppm)	Palladium (ppm)	Gold (ppm)
PK03	4.291 (+/- 0.046)	6.028 (+/- 0.094)	5.038 (+/- 0.051)	2.5kg jars
PK08	2.365 (+/- 0.038)	5.926 (+/- 0.119)	4.956 (+/- 0.073)	30g & 50g sachets, 2.5kg jars
PG04	0.903 (+/- 0.007)	1.196 (+/- 0.014)	1.004 (+/- 0.008)	30g & 50g sachets, 2.5kg jars
PD06	0.424(+/- 0.004)	0.590 (+/- 0.008)	0.507 (+/- 0.004)	30g & 50g sachets, 2.5kg jars

Reference Materials Certified for Au and Ag

Material	Matrix Type	Assigned Values & 95% Confidence Intervals		Packaging
		Gold (ppm)	Silver (ppm)
SL107	Sulphide (3.2% S)	5.069 (+/- 0.03)	30.1 (+/- 0.4)	30g & 50g sachets, 2.5kg jars
SN118	Sulphide (3.3% S)	8.917 (+/- 0.055)	49.9 (+/- 0.9)	30g & 50g sachets, 2.5kg jars
SN134	Sulphide (3.3% S)	9.073 (+/- 0.07)	49.6 (+/- 0.9)	30g & 50g sachets, 2.5kg jars
SP132	Sulphide (3.5% S)	18.2 (+/- 0.1)	84 (+/- 1.5)	30g & 50g sachets, 2.5kg jars
OxQ171	Oxide	34.57 (+/- 0.34)	121.9 (+/- 2.3)	30g & 50g sachets, 2.5kg jars
SQ130	Sulphide (10% S)	39.47 (+/- 0.31)	158.6 (+/- 2.8)	30g & 50g sachets, 2.5kg jars

*certificates available on request

Reference Materials Certified for Au

Material	Matrix Type	Gold (ppm) assigned values & 95% Confidence Intervals	Packaging	Stock Level (2.5kg jar)
Au Blank15	Oxide	<0.002 (<0.5)	50g sachets only	High
Au Blank16	Oxide	<0.002 (<0.5)	50g sachets only	High
Au Blank17	Oxide	<0.002 (<0.5)	50g sachets only	High
OxA187	Oxide	0.080 (+/- 0.001)	30g & 50g sachets, 2.5kg jars	High
OxB186	Oxide	0.121 (+/- 0.001)	50g sachets, 2.5kg jars	High
OxB203	Oxide	0.129 (+/- 0.002)	30g & 50g sachets, 2.5kg jars	High
OxC152	Oxide	0.216 (+/- 0.002)	50g sachets only	Low
OxC168	Oxide	0.213 (+/- 0.002)	50g sachets only	Medium
OxC185	Oxide	0.218 (+/- 0.002)	30g & 50g sachets, 2.5kg jars	High
SC129	Sulphide (2.0% S)	0.231 (+/- 0.002)	30g & 50g sachets, 2.5kg jars	High
SC143	Sulphide (2.0% S)	0.231 (+/- 0.002)	30g & 50g sachets, 2.5kg jars	High
OxD183	Oxide	0.453 (+/- 0.003)	30g & 50g sachets, 2.5kg jars	High
OxD184	Oxide	0.414 (+/- 0.003)	30g & 50g sachets, 2.5kg jars	High
OxE182	Oxide	0.663 (+/- 0.004)	50g sachets, 2.5kg jars	High
OxE202	Oxide	0.660 (+/- 0.006)	30g & 50g sachets, 2.5kg jars	High
OxF165	Oxide	0.857 (+/- 0.005)	50g sachets	Low
OxF200	Oxide	0.838(+/- 0.008)	30g & 50g sachets, 2.5kg jars	High
SF141	Sulphide (2.5% S)	0.883 (+/- 0.008)	30g & 50g sachets, 2.5kg jars	High
OxG180	Oxide	0.971 (+/- 0.009)	50g sachets only	High
OxG201	Oxide	1.224 (+/- 0.007)	30g & 50g sachets, 2.5kg jars	High
SG102	Sulphide (2.6% S)	0.997 (+/- 0.008)	2.5kg jars only	Low
SG113	Sulphide (2.6% S)	1.024 (+/- 0.006)	2.5kg jars only	Low
SG115	Sulphide (2.6% S)	1.017 (+/- 0.005)	2.5kg jars only	Low
SG144	Sulphide (2.6% S)	1.026 (+/- 0.009)	30g & 50g sachets, 2.5kg jars	High
OxH199	Oxide	1.323 (+/- 0.011)	30g & 50g sachets, 2.5kg jars	High
SH139	Sulphide (2.7% S)	1.388 (+/- 0.011)	30g & 50g sachets, 2.5kg jars	High
Oxi164	Oxide	1.790 (+/- 0.011)	2.5kg jars only	Low
Oxi177	Oxide	1.811 (+/- 0.013)	30g & 50g sachets, 2.5kg jars	High
Si96	Sulphide (3.0% S)	1.801 (+/- 0.009)	2.5kg jars only	High
Si146	Sulphide (3.0% S)	1.780 (+/- 0.02)	30g & 50g sachets, 2.5kg jars	High
OxJ176	Oxide	2.385 (+/- 0.016)	30g & 50g sachets, 2.5kg jars	High
SJ111	Sulphide (3.0% S)	2.812 (+/- 0.021)	2.5kg jars only	Low
SJ138*	Sulphide (3.0% S)	2.733(+/- 0.018)	50g sachets, 2.5kg jars	High
SJ145	Sulphide (3.0% S)	2.738 (+/- 0.020)	30g & 50g sachets, 2.5kg jars	High
Hi Sil K6	Sulphide (1.0% S)	3.446 (+/- 0.033)	30g & 50g sachets, 2.5kg jars	High
SK120	Sulphide (3.0% S)	4.089 (+/- 0.033)	50g sachets	High
SK137	Sulphide (3.0% S)	4.089 (+/- 0.033)	30g & 50g sachets, 2.5kg jars	High
OxK197	Oxide	3.753 (+/- 0.029)	30g & 50g sachets, 2.5kg jars	High
SL136	Sulphide (3.2% S)	5.899 (+/- 0.039)	30g & 50g sachets, 2.5kg jars	High
OxL196	Oxide	5.818 (+/- 0.056)	30g & 50g sachets, 2.5kg jars	High
SN103	Sulphide (3.3% S)	8.520 (+/- 0.047)	50g sachets only	Low
SN117	Sulphide (3.3% S)	8.443 (+/- 0.036)	50g sachets only	Medium
SN135	Sulphide (3.3% S)	8.510 (+/- 0.072)	30g & 50g sachets, 2.5kg jars	High
OxN173	Oxide	7.668 (+/- 0.046)	30g & 50g sachets, 2.5kg jars	Low
OxN195	Oxide	7.675 (+/- 0.065)	30g & 50g sachets, 2.5kg jars	High
HiSilP5	Sulphide (2.0% S)	12.05 (+/- 0.064)	30g & 50g sachets, 2.5kg jars	High
OxP194	Oxide	15.10 (+/- 0.8)	30g & 50g sachets, 2.5kg jars	High
SP116	Sulphide (3.5% S)	18.091 (+/- 0.103)	2.5kg jars only	Low
SP133	Sulphide (3.5% S)	18.14 (+/- 0.11)	50g sachets, 2.5kg jars	High
SP142	Sulphide (3.5% S)	18.15 (+/- 0.10)	50g sachets, 2.5kg jars	High
OxQ170	Oxide	24.939 (+/- 0.182)	30g & 50g sachets, 2.5kg jars	High
SQ131	Sulphide (3.5% S)	30.68 (+/- 0.23)	30g & 50g sachets, 2.5kg jars	High

*Certificates available on request

Certificates of Analysis for Older Reference Materials

Certificates of Older Reference Materials can be made available upon request.

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.

Customised Reference Materials

For mine material or exploration targets that have an unusual matrix, we may be able to produce a custom reference material for you. We use only known, stable materials and screened minerals with finely divided gold to match your matrix. The matrix-matched mineral components will be blended and packaged to your preference in sachets or jars, and a formal homogeneity test carried out. Samples can be sent out for consensus testing and a formal certificate can be supplied if required.