OREAS 142 Sn (1.04 wt.%) smectite clay
OR142_10g
Item: OR142_10g
Unit of measure: ea
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Description:

OREAS 142 is a high grade Sn oxide ore certified reference material (CRM) prepared by Ore Research & Exploration. The material was sourced from the Doradilla Project located in north central NSW. The project area consists of a large Sn laterite deposit underlain by Sn silicate skarn with potential for copper, nickel, indium and zinc mineralisation. The skarn horizon has a strike length of 16km with zones of oxide, supergene and primary Sn mineralization. Compositionally OREAS 142 is dominated by smectite clay with minor quartz, kaolin and goethite. Sn mineralization occurs as varlamoffite [(Sn,Fe)(O,OH)2] with some relict cassiterite. OREAS 142 is one of three tin CRMs prepared from oxide material and characterised for Ag, As, Bi, Cu, In, Mo, Pb, Zn and Sn.

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AnalyteCertified Value1SD95% CI Low95% CI HighMethod
Ag, Silver (ppm)1.220.121.131.324-Acid Digestion
As, Arsenic (ppm)584385556134-Acid Digestion
Bi, Bismuth (ppm)242172292544-Acid Digestion
Cu, Copper (ppm)146665142015124-Acid Digestion
In, Indium (ppm)45539504-Acid Digestion
Mo, Molybdenum (ppm)2.990.192.943.044-Acid Digestion
Pb, Lead (ppm)543.852574-Acid Digestion
Zn, Zinc (ppm)243682238124924-Acid Digestion
Sn, Tin (wt.%)1.040.051.011.07Borate / Peroxide Fusion ICP
Sn, Tin (ppm)10800011Pressed Powder Pellet XRF