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Products > OREAS > Gold - Copper Porphyry >

OREAS 153b Au (313.3 ppb) quartz monzonite

Item: OR153b_60g

Unit of measure: ea

Description:

OREAS 153b is one of three (second generation) porphyry Cu-Au certified reference materials (CRMs). It has been prepared from copper ore drilling reject material from 27 drill holes from the Waisoi district, Viti Levu, Fiji, with the addition of a minor quantity of Cu concentrate (0.76%). The two deposits in the Waisoi district are the Waisoi East deposit (quartz porphyry) and the Waisoi West deposit (diorite porphyry). Copper mineralisation in the region is accompanied by stockwork quartz veinlets and is characterised by bornite-chalcopyrite-pyrite assemblages formed under a high sulphidation environment.

Download Certificate OREAS153b

Download DataPack OREAS153b

Analyte	Certified Value	1SD	95% CI Low	95% CI High	Method
Ag, Silver (ppm)	1.45	0.09	1.41	1.49	4-Acid Digestion
Al, Aluminium (wt.%)	7.94	0.314	7.82	8.07	4-Acid Digestion
As, Arsenic (ppm)	79	5.4	76	82	4-Acid Digestion
Ba, Barium (ppm)	103	4	101	104	4-Acid Digestion
Be, Beryllium (ppm)	0.52	0.041	0.49	0.54	4-Acid Digestion
Bi, Bismuth (ppm)	1.61	0.144	1.51	1.71	4-Acid Digestion
Ca, Calcium (wt.%)	1.83	0.078	1.8	1.86	4-Acid Digestion
Cd, Cadmium (ppm)	0.26	0.05	0.22	0.31	4-Acid Digestion
Ce, Cerium (ppm)	11.7	1.9	10	13.4	4-Acid Digestion
Co, Cobalt (ppm)	15.4	1.35	14.8	16	4-Acid Digestion
Cr, Chromium (ppm)	17.3	2.9	16	18.7	4-Acid Digestion
Cs, Caesium (ppm)	0.44	0.041	0.42	0.46	4-Acid Digestion
Cu, Copper (wt.%)	0.678	0.015	0.672	0.684	4-Acid Digestion
Dy, Dysprosium (ppm)	2.11	0.133	2.02	2.2	4-Acid Digestion
Er, Erbium (ppm)	1.23	0.087	1.13	1.33	4-Acid Digestion
Eu, Europium (ppm)	0.67	0.035	0.64	0.7	4-Acid Digestion
Fe, Iron (wt.%)	3.86	0.14	3.79	3.92	4-Acid Digestion
Ga, Gallium (ppm)	18.8	1.26	18.1	19.5	4-Acid Digestion
Gd, Gadolinium (ppm)	2.15	0.13	2.04	2.27	4-Acid Digestion
Hf, Hafnium (ppm)	0.5	IND	IND	IND	4-Acid Digestion
Ho, Holmium (ppm)	0.43	0.042	0.37	0.48	4-Acid Digestion
In, Indium (ppm)	0.23	0.013	0.22	0.24	4-Acid Digestion
K, Potassium (wt.%)	1.16	0.047	1.13	1.18	4-Acid Digestion
La, Lanthanum (ppm)	5.03	0.77	4.52	5.54	4-Acid Digestion
Li, Lithium (ppm)	5.69	0.328	5.5	5.88	4-Acid Digestion
Lu, Lutetium (ppm)	0.16	0.02	0.14	0.18	4-Acid Digestion
Mg, Magnesium (wt.%)	1.64	0.065	1.62	1.67	4-Acid Digestion
Mn, Manganese (wt.%)	0.028	0.001	0.028	0.029	4-Acid Digestion
Mo, Molybdenum (ppm)	163	10	158	168	4-Acid Digestion
Na, Sodium (wt.%)	2.46	0.064	2.43	2.49	4-Acid Digestion
Nb, Niobium (ppm)	1.42	0.25	1.23	1.61	4-Acid Digestion
Nd, Neodymium (ppm)	7.4	0.432	6.92	7.87	4-Acid Digestion
Ni, Nickel (ppm)	11.9	1.6	11.2	12.6	4-Acid Digestion
P, Phosphorus (wt.%)	0.053	0.004	0.051	0.055	4-Acid Digestion
Pb, Lead (ppm)	13.1	1.2	12.6	13.6	4-Acid Digestion
Pr, Praseodymium (ppm)	1.72	0.102	1.6	1.85	4-Acid Digestion
Rb, Rubidium (ppm)	20.5	1.38	19.5	21.5	4-Acid Digestion
Re, Rhenium (ppm)	0.18	0.017	0.16	0.19	4-Acid Digestion
S, Sulphur (wt.%)	1.28	0.034	1.27	1.29	4-Acid Digestion
Sb, Antimony (ppm)	3.04	0.36	2.77	3.31	4-Acid Digestion
Sc, Scandium (ppm)	16.8	1.2	16.2	17.4	4-Acid Digestion
Se, Selenium (ppm)	11.2	1.3	10.2	12.1	4-Acid Digestion
Sm, Samarium (ppm)	1.93	0.175	1.71	2.15	4-Acid Digestion
Sn, Tin (ppm)	3.97	0.391	3.73	4.22	4-Acid Digestion
Sr, Strontium (ppm)	164	7	160	167	4-Acid Digestion
Ta, Tantalum (ppm)	0.5	IND	IND	IND	4-Acid Digestion
Tb, Terbium (ppm)	0.36	0.035	0.32	0.39	4-Acid Digestion
Te, Tellurium (ppm)	0.27	0.05	0.25	0.28	4-Acid Digestion
Th, Thorium (ppm)	0.45	0.044	0.42	0.48	4-Acid Digestion
Ti, Titanium (wt.%)	0.285	0.033	0.269	0.301	4-Acid Digestion
Tl, Thallium (ppm)	0.16	0.03	0.15	0.18	4-Acid Digestion
Tm, Thulium (ppm)	0.18	0.02	0.15	0.2	4-Acid Digestion
U, Uranium (ppm)	0.11	0.01	0.1	0.11	4-Acid Digestion
V, Vanadium (ppm)	230	11	225	235	4-Acid Digestion
W, Tungsten (ppm)	2.02	0.37	1.76	2.28	4-Acid Digestion
Y, Yttrium (ppm)	11.1	0.8	10.6	11.5	4-Acid Digestion
Yb, Ytterbium (ppm)	1.17	0.16	1.03	1.32	4-Acid Digestion
Zn, Zinc (ppm)	122	5	119	124	4-Acid Digestion
Zr, Zirconium (ppm)	10	IND	IND	IND	4-Acid Digestion
Ag, Silver (ppm)	1.43	0.103	1.39	1.48	Aqua Regia Digestion
Al, Aluminium (wt.%)	2.28	0.111	2.22	2.33	Aqua Regia Digestion
As, Arsenic (ppm)	80	3.1	79	81	Aqua Regia Digestion
Au, Gold (ppb)	320	13	314	325	Aqua Regia Digestion
B, Boron (ppm)	10	IND	IND	IND	Aqua Regia Digestion
Ba, Barium (ppm)	22.8	2.8	21.4	24.2	Aqua Regia Digestion
Be, Beryllium (ppm)	0.18	0.03	0.15	0.2	Aqua Regia Digestion
Bi, Bismuth (ppm)	1.81	0.25	1.66	1.95	Aqua Regia Digestion
Ca, Calcium (wt.%)	1.32	0.055	1.3	1.35	Aqua Regia Digestion
Cd, Cadmium (ppm)	0.24	0.05	0.21	0.27	Aqua Regia Digestion
Ce, Cerium (ppm)	9.11	0.856	8.44	9.77	Aqua Regia Digestion
Co, Cobalt (ppm)	14.9	1.04	14.5	15.4	Aqua Regia Digestion
Cr, Chromium (ppm)	16.2	1.08	15.7	16.6	Aqua Regia Digestion
Cs, Caesium (ppm)	0.26	0.04	0.22	0.29	Aqua Regia Digestion
Cu, Copper (wt.%)	0.67	0.013	0.664	0.676	Aqua Regia Digestion
Dy, Dysprosium (ppm)	1.92	0.35	1.44	2.4	Aqua Regia Digestion
Fe, Iron (wt.%)	3.6	0.107	3.55	3.65	Aqua Regia Digestion
Ga, Gallium (ppm)	8.06	1.36	7.34	8.78	Aqua Regia Digestion
Hg, Mercury (ppm)	0.066	0.013	0.059	0.074	Aqua Regia Digestion
In, Indium (ppm)	0.21	0.014	0.2	0.22	Aqua Regia Digestion
K, Potassium (wt.%)	0.365	0.03	0.351	0.378	Aqua Regia Digestion
La, Lanthanum (ppm)	3.79	0.238	3.65	3.94	Aqua Regia Digestion
Li, Lithium (ppm)	3.28	0.64	2.77	3.8	Aqua Regia Digestion
Lu, Lutetium (ppm)	0.11	0.01	0.1	0.12	Aqua Regia Digestion
Mg, Magnesium (wt.%)	1.47	0.053	1.45	1.5	Aqua Regia Digestion
Mn, Manganese (wt.%)	0.024	0.001	0.024	0.025	Aqua Regia Digestion
Mo, Molybdenum (ppm)	156	6	154	159	Aqua Regia Digestion
Na, Sodium (wt.%)	0.148	0.008	0.144	0.151	Aqua Regia Digestion
Nb, Niobium (ppm)	0.2	IND	IND	IND	Aqua Regia Digestion
Nd, Neodymium (ppm)	6.31	0.7	5.39	7.23	Aqua Regia Digestion
Ni, Nickel (ppm)	11.1	0.97	10.7	11.5	Aqua Regia Digestion
P, Phosphorus (wt.%)	0.047	0.002	0.046	0.047	Aqua Regia Digestion
Pb, Lead (ppm)	12.4	1.2	11.8	12.9	Aqua Regia Digestion
Rb, Rubidium (ppm)	7.34	0.86	6.6	8.08	Aqua Regia Digestion
Re, Rhenium (ppm)	0.17	0.02	0.15	0.2	Aqua Regia Digestion
S, Sulphur (wt.%)	1.27	0.053	1.25	1.3	Aqua Regia Digestion
Sb, Antimony (ppm)	2.12	0.38	1.9	2.33	Aqua Regia Digestion
Sc, Scandium (ppm)	9.98	0.675	9.66	10.3	Aqua Regia Digestion
Se, Selenium (ppm)	10.5	1	9.9	11.2	Aqua Regia Digestion
Sm, Samarium (ppm)	1.71	0.19	1.47	1.95	Aqua Regia Digestion
Sn, Tin (ppm)	3.27	0.43	2.89	3.64	Aqua Regia Digestion
Sr, Strontium (ppm)	31.4	1.7	30.6	32.1	Aqua Regia Digestion
Tb, Terbium (ppm)	0.31	0.018	0.29	0.34	Aqua Regia Digestion
Te, Tellurium (ppm)	0.25	0.04	0.23	0.28	Aqua Regia Digestion
Th, Thorium (ppm)	0.35	0.04	0.33	0.37	Aqua Regia Digestion
Ti, Titanium (wt.%)	0.05	0.004	0.048	0.052	Aqua Regia Digestion
Tl, Thallium (ppm)	0.064	0.007	0.058	0.07	Aqua Regia Digestion
Tm, Thulium (ppm)	0.13	0.012	0.11	0.14	Aqua Regia Digestion
U, Uranium (ppm)	0.061	0.007	0.056	0.066	Aqua Regia Digestion
V, Vanadium (ppm)	153	5	150	156	Aqua Regia Digestion
W, Tungsten (ppm)	1	IND	IND	IND	Aqua Regia Digestion
Y, Yttrium (ppm)	9.38	0.415	9.11	9.64	Aqua Regia Digestion
Yb, Ytterbium (ppm)	0.83	0.08	0.74	0.93	Aqua Regia Digestion
Zn, Zinc (ppm)	118	5	116	121	Aqua Regia Digestion
Zr, Zirconium (ppm)	0.86	0.13	0.69	1.02	Aqua Regia Digestion
Cu-Sol(CN), Copper soluble (cyanidation) (wt.%)	0.157	0.005	0.154	0.161	Cyanide Leach
Au, Gold (ppb)	313	9	310	317	Pb Fire Assay