Certified Reference Materials

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)
PK3	4.291 (+/- 0.046)	6.028 (+/- 0.094)	5.038 (+/- 0.051)	50g sachets, 2.5kg jars
PG04	0.903 (+/- 0.007)	1.196 (+/- 0.014)	1.004 (+/- 0.008)	30g & 50g sachets, 2.5kg jars
PD05	0.430 (+/- 0.005)	0.596 (+/- 0.006)	0.519 (+/- 0.004)	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)
AgAuBlank	Oxide	<0.002	<0.2	50g sachets only
SL107	Sulphide (3.2% S)	5.069 (+/- 0.03)	30.1 (+/- 0.4)	30g & 50g sachets, 2.5kg jars
SN104	Sulphide (3.3% S)	9.182 (+/- 0.057)	46.7 (+/- 0.6)	50g sachets, 2.5kg jars
SN118	Sulphide (3.3% S)	8.917 (+/- 0.055)	49.9 (+/- 0.9)	30g & 50g sachets, 2.5kg jars
SP89*	Sulphide (3.5% S)	18.46 (+/- 0.08)	84.4 (+/- 1.1)	30g & 50g sachets, 2.5kg jars
SP132	Sulphide (3.5% S)	18.2 (+/- 0.1)	84 (+/- 1.5)	30g & 50g sachets, 2.5kg jars
OxQ132*	Oxide	34.69 (+/- 0.22)	128.5 (+/- 1.9)	50g sachets only
OxQ153	Oxide	34.78 (+/- 0.23)	128.0 (+/- 1.1)	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
Au Blank111	Oxide	<0.002	50g sachets only
OxA187	Oxide	0.080 (+/- 0.001)	30g & 50g sachets, 2.5kg jars
OxB186	Oxide	0.121 (+/- 0.001)	30g & 50g sachets, 2.5kg jars
OxC152	Oxide	0.216 (+/- 0.002)	50g sachets only
OxC168	Oxide	0.213 (+/- 0.002)	50g sachets, 2.5kg jars
OxC185	Oxide	0.218 (+/- 0.002)	30g & 50g sachets, 2.5kg jars
SC127	Sulphide (2.0% S)	0.225 (+/- 0.002)	50g sachets only
SC129	Sulphide (2.0% S)	0.231 (+/- 0.002)	30g & 50g sachets, 2.5kg jars
OxD157	Oxide	0.399 (+/- 0.004)	50g sachets only
OxD169	Oxide	0.456 (+/- 0.004)	30g & 50g sachets, 2.5kg jars
OxD183	Oxide	0.453 (+/- 0.003)	30g & 50g sachets, 2.5kg jars
OxD184	Oxide	0.414 (+/- 0.003)	30g & 50g sachets, 2.5kg jars
SE125	Sulphide (2.3% S)	0.618 (+/- 0.004)	30g & 50g sachets, 2.5kg jars
OxE182	Oxide	0.663 (+/- 0.004)	30g & 50g sachets, 2.5kg jars
OxF165	Oxide	0.857 (+/- 0.005)	50g sachets
OxF181	Oxide	0.814 (+/- 0.006)	30g & 50g sachets, 2.5kg jars
SF141*	Sulphide (2.5% S)	0.883 (+/- 0.008)	30g & 50g sachets, 2.5kg jars
OxG179	Oxide	1.063 (+/- 0.009)	2.5kg jars only
OxG191	Oxide	1.093 (+/- 0.007)	30g & 50g sachets, 2.5kg jars
OxG180	Oxide	0.971 (+/- 0.009)	50g sachets only
OxG189	Oxide	0.987 (+/- 0.008)	30g & 50g sachets, 2.5kg jars
SG102	Sulphide (2.6% S)	0.997 (+/- 0.008)	2.5kg jars only
SG113	Sulphide (2.6% S)	1.024 (+/- 0.006)	2.5kg jars only
SG115	Sulphide (2.6% S)	1.017 (+/- 0.005)	2.5kg jars only
OxH178	Oxide	1.291 (+/- 0.008)	50g sachets, 2.5kg jars
OxH188*	Oxide	1.318 (+/- 0.012)	50g sachets only
OxH199*	Oxide	1.323 (+/- 0.011)	30g & 50g sachets, 2.5kg jars
SH82*	Sulphide (2.8% S)	1.333 (+/- 0.007)	50g sachets only
SH98*	Sulphide (2.7% S)	1.400 (+/- 0.008)	30g & 50g sachets, 2.5kg jars
SH140*	Sulphide (2.6% S)	1.256 (+/- 0.0011)	30g & 50g sachets, 2.5kg jars
Oxi164	Oxide	1.790 (+/- 0.011)	50g sachets, 2.5kg jars
Oxi177	Oxide	1.811 (+/- 0.013)	30g & 50g sachets, 2.5kg jars
Si81	Sulphide (3.0% S)	1.790 (+/- 0.008)	50g sachets, 2.5kg jars
Si96*	Sulphide (3.0% S)	1.801 (+/- 0.009)	30g & 50g sachets, 2.5kg jars
OxJ176	Oxide	2.385 (+/- 0.016)	30g & 50g sachets, 2.5kg jars
SJ111	Sulphide (3.0% S)	2.812 (+/- 0.021)	2.5kg jars only
SJ121	Sulphide (3.0% S)	2.715 (+/- 0.021)	30g & 50g sachets, 2.5kg jars
Hi Sil K6	Sulphide (1.0% S)	3.446 (+/- 0.033)	30g & 50g sachets, 2.5kg jars
SK137	Sulphide (3.0% S)	4.089 (+/- 0.033)	30g & 50g sachets, 2.5kg jars
OxK175	Oxide	3.843 (+/- 0.023)	50g sachets only
OxK197	Oxide	3.753 (+/- 0.029)	30g & 50g sachets, 2.5kg jars
SL136	Sulphide (3.2% S)	5.899 (+/- 0.039)	30g & 50g sachets, 2.5kg jars
OxL159	Oxide	5.849 (+/- 0.042)	50g sachets only
OxL196	Oxide	5.818 (+/- 0.056)	30g & 50g sachets, 2.5kg jars
SN103	Sulphide (3.3% S)	8.520 (+/- 0.047)	50g sachets only
SN135	Sulphide (3.3% S)	8.510 (+/- 0.072)	30g & 50g sachets, 2.5kg jars
SN117	Sulphide (3.3% S)	8.443 (+/- 0.036)	50g sachets only
OxN173	Oxide	7.668 (+/- 0.046)	30g & 50g sachets, 2.5kg jars
HiSilP3*	Sulphide (2.0% S)	12.24 (+/- 0.071)	2.5kg jars
HiSilP5	Sulphide (2.0% S)	12.05 (+/- 0.064)	30g & 50g sachets, 2.5kg jars
OxP133*	Oxide	15.14 (+/- 0.08)	50g sachets only
OxP158	Oxide	15.150 (+/- 0.106)	2.5kg jars only
OxP194	Oxide	15.10 (+/- 0.8)	30g & 50g sachets, 2.5kg jars
SP116	Sulphide (3.5% S)	18.091 (+/- 0.103)	2.5kg jars only
SP122	Sulphide (3.5% S)	18.044 (+/- 0.122)	50g sachets only
SP133*	Sulphide (3.5% S)	18.14 (+/- 0.11)	30g & 50g sachets, 2.5kg jars
OxQ115	Oxide	25.22 (+/- 0.18)	50g sachets only
OxQ170	Oxide	24.939 (+/- 0.182)	30g & 50g sachets, 2.5kg jars
SQ87*	Sulphide (3.5% S)	30.87 (+/- 0.21)	50g sachets only
SQ131	Sulphide (3.5% S)	30.68 (+/- 0.23)	30g & 50g sachets, 2.5kg jars

*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.