Latest OREAS releases 2018

These CRMs replace the earlier generation and are sourced from the Cracow (low sulphidation) epithermal Au-Ag deposit located in Queensland, Australia. Certified Values for Au, Ag and S are shown below.

OREAS	Au ppm	Ag ppm	S wt.%	Description
60d	2.47	4.47	0.57	(replaces OREAS 60c)
61f	4.60	3.64	0.41	(replaces OREAS 61e)
62f	9.71	5.47	0.20	(replaces OREAS 62e)

 

Analytical certification includes:

1. Au by 25-40g fire assay with ICP-OES or AAS finish;
2. Au by aqua regia digest (15 to 50g sample) with ICP-OES or AAS finish;
3. Four acid digestion for full suite ICP-OES and ICP-MS;
4. Aqua regia digestion for full suite ICP-OES and ICP-MS.

Prices: $7.35/ 60g unit and $61.00/ 500g jar (prices in AUD).

 

OREAS 260 to 263 are low level gold oxide CRMs sourced from the Sepon Carlin style deposit in Laos. Certified Values for Au, Cu and Zn are shown below.

OREAS	Au ppb	Cu ppm	Zn ppm	Description
260	16	46.5	125	replaces OREAS H1
261	49	64	128	replaces OREAS H5
262	99	118	154	new CRM
263	214	87	127	new CRM

Analytical certification includes:

1. Au by low level, fire assay with ICP-OES or MS;
2. Au by 15-25g aqua regia digest with AAS or ICP finish and
3. Full elemental suite by aqua regia digestion with ICP-OES and MS analysis.

Prices: $5.34/ 60g unit and $44.50/ 500g jar (prices in AUD).

 

OREAS 680 to 684 were largely developed using PGE ores sourced from Anglo Platinum’s Dishaba Mine in South Africa. Some high grade copper and nickel ores were added to OREAS 680. Certified Values for Au, Pt, Pd, Ni and Cu are shown below.

OREAS	Au ppb	Pt ppb	Pd ppb	Ni ppm	Cu ppm
680	161	405	281	21,500	9040
681	51	526	243	518	272
682	74	868	444	572	261
683	207	1760	853	1215	405
684	248	3870	1720	2230	1001

 

Analytical certification includes:

1. Pt-Pd-Au by Pb fire assay ICP-OES or MS;
2. Pt-Pd-Ru-Rh-Ir-Au by NiS fire assay ICP-MS;
3. Ni, Cu and full suite by peroxide fusion ICP-OES & MS;
4. Ni, Cu and full suite by 4-acid digest ICP-OES & MS.

Prices: $11.70/ 60g unit and $95.00/ 500g jar (prices in AUD).

 

Glacial till material sourced from Quebec, Canada has been used to develop OREAS 46 (a blank/ low level geochem CRM) and OREAS 47 (an anomalous geochem-level CRM), ideal for exploration in glacial terrains. Certified Values for a selection of analytes are shown below.

OREAS	Au ppb	Pd ppb	Pt ppb	Co ppm	Li ppm	Cu ppm	Pb ppm	Mo ppm	Ni ppm	Zn ppm
46	<3	0.59*	0.55*	9.9	10.5	23	2	0.8	27	36
47	44	44	29	54	43	160	288	13	89	222

*Indicative value only

 

Analytical certification includes:

Au by 25-50g fire assay with ICP or AAS finish;

1. Au by aqua regia digest (15 to 50g sample) with ICP-MS;
2. Four acid digestion for full suite by ICP-OES and ICP-MS;
3. Aqua regia digestion for full suite by ICP-OES and ICP-MS;
4. Fusion for full suite by ICP-OES and ICP-MS;

Prices: $3.00/ 10g unit, $9.35/ 60g unit and $77.50/ 500g jar (prices in AUD).

 

Highly popular with the exploration industry since their release in 2004, the OREAS 45 series tradition will continue following procurement of a further 10 tonnes of this Cu-Ni-PGE anomalous ferruginous soil. Labelled OREAS 45f and 45h, the new products will complement the OREAS SuperCRM® range that now boasts a total of 88 CRMs. Selected certified values below.

OREAS	Au ppb	Pt ppb	Pd ppb	Cu ppm	Zn ppm	Co ppm	Ni ppm	As ppm
45f	19.3	38.1	56.6	362	35	49	256	9.7
45h	41.1	87.5	128	767	40	88	423	16.9

 

Certification program includes:

1. Lithium borate fusion for full suite X-ray fluorescence and LOI at 1000^oC;
2. Sodium peroxide fusion / lithium borate fusion for full suite ICP-OES and ICP-MS;
3. Four acid digestion for full suite ICP-OES and ICP-MS;
4. Aqua regia digestion for full suite ICP-OES and ICP-MS;
5. Fire assay with ICP-OES and ICP-MS for Au, Pd and Pt;
6. Instrumental neutron activation analysis for Au on 1g subsamples to confirm homogeneity;
7. Infra-red combustion furnace for C and S.

Prices: $3.00/ 10g unit, $9.35/ 60g unit and $155.00/ 1kg jar (prices in AUD).

 

Au (in ppm) certified values are shown below.

OREAS	Au FA	Au CN leach	Description
219	0.760	0.75	(replaces OREAS 202)
226	5.45	5.45	(replaces OREAS 210)
216b	6.66	6.65	(replaces OREAS 216)
228b	8.57	8.40	(replaces OREAS 228)
229b	11.95	11.76	(replaces OREAS 229)

 

Certification program includes:

1. Au by fire assay on 25-40g charge with AAS or ICP finish;
2. Au by 15-50g aqua regia digest with AAS or ICP finish;
3. Au by cyanide leach method;
4. Full elemental suite by aqua regia digestion with ICP-OES and MS.

Prices: $5.34/ 60g unit, $22.50/ 250g unit and $89.00/ 1kg jar (prices in AUD).