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Products > OREAS > Blanks >

OREAS 24c Au (1 ppb) basalt

Item: OR24c_1Kg

Unit of measure: ea

Description:

OREAS 24c was prepared from alkali olivine basalt from the Quaternary Newer Volcanics Province, Victoria, Australia. It is characterised by very low background gold of less than 1 parts per billion. Seven commercial analytical laboratories participated in the program to characterise (in addition to gold by fire assay) Ag, Al, As, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe, Hf, K, Li, Mg, Mn, Mo, Na, Nb, Ni, P, Pb, Rb, Sb, Sc, Sn, Sr, Ta, Th, Ti, U, V, W, Y, Zn and Zr by 4-acid digestion with ICP-OES or ICP-MS finish.

Download Certificate OREAS24c

Download DataPack OREAS24c

Analyte	Certified Value	1SD	95% CI Low	95% CI High	Method
Ag, Silver (ppm)	0.2	IND	IND	IND	4-Acid Digestion
Al, Aluminium (wt.%)	7.45	0.213	7.23	7.66	4-Acid Digestion
As, Arsenic (ppm)	0.2	IND	IND	IND	4-Acid Digestion
Ba, Barium (ppm)	269	6	264	274	4-Acid Digestion
Be, Beryllium (ppm)	1.05	0.073	0.98	1.12	4-Acid Digestion
Bi, Bismuth (ppm)	0.1	IND	IND	IND	4-Acid Digestion
Ca, Calcium (wt.%)	5.86	0.126	5.8	5.92	4-Acid Digestion
Cd, Cadmium (ppm)	0.1	IND	IND	IND	4-Acid Digestion
Co, Cobalt (ppm)	42.7	1.71	41.3	44.1	4-Acid Digestion
Cr, Chromium (ppm)	193	9	183	202	4-Acid Digestion
Cu, Copper (ppm)	48.6	1.45	47.3	49.9	4-Acid Digestion
Fe, Iron (wt.%)	7.62	0.356	7.29	7.95	4-Acid Digestion
Hf, Hafnium (ppm)	3.75	0.244	3.44	4.06	4-Acid Digestion
K, Potassium (wt.%)	0.735	0.041	0.683	0.787	4-Acid Digestion
Li, Lithium (ppm)	8.32	0.89	7.13	9.5	4-Acid Digestion
Mg, Magnesium (wt.%)	3.93	0.101	3.82	4.04	4-Acid Digestion
Mn, Manganese (wt.%)	0.108	0.006	0.101	0.116	4-Acid Digestion
Mo, Molybdenum (ppm)	2.49	0.203	2.31	2.67	4-Acid Digestion
Na, Sodium (wt.%)	2.42	0.141	2.24	2.6	4-Acid Digestion
Nb, Niobium (ppm)	23.8	2.8	20.1	27.5	4-Acid Digestion
Ni, Nickel (ppm)	138	4	135	140	4-Acid Digestion
P, Phosphorus (wt.%)	0.156	0.006	0.148	0.163	4-Acid Digestion
Pb, Lead (ppm)	2.9	0.245	2.65	3.15	4-Acid Digestion
Rb, Rubidium (ppm)	21.9	0.91	20.8	22.9	4-Acid Digestion
Sb, Antimony (ppm)	0.1	IND	IND	IND	4-Acid Digestion
Sc, Scandium (ppm)	21.6	1.33	19.9	23.3	4-Acid Digestion
Sn, Tin (ppm)	1.51	0.094	1.44	1.58	4-Acid Digestion
Sr, Strontium (ppm)	442	12	430	453	4-Acid Digestion
Ta, Tantalum (ppm)	1.48	0.23	1.16	1.8	4-Acid Digestion
Th, Thorium (ppm)	3.08	0.177	2.91	3.24	4-Acid Digestion
Ti, Titanium (wt.%)	1.06	0.026	1.04	1.07	4-Acid Digestion
U, Uranium (ppm)	0.76	0.039	0.73	0.79	4-Acid Digestion
V, Vanadium (ppm)	161	7	154	167	4-Acid Digestion
W, Tungsten (ppm)	0.53	0.09	0.44	0.61	4-Acid Digestion
Y, Yttrium (ppm)	22.3	0.52	21.9	22.7	4-Acid Digestion
Zn, Zinc (ppm)	108	14	95	122	4-Acid Digestion
Zr, Zirconium (ppm)	143	10	130	156	4-Acid Digestion
Au, Gold (ppb)	1	IND	IND	IND	Pb Fire Assay