OREAS 140

OREAS 140 is a low 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 140 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 140 is one of three tin CRMs prepared from oxide material and characterised for Ag, As, Bi, Cu, In, Mo, Pb, Zn and Sn.

Analyte Certified Value 1SD 95% Confidence Low 95% Confidence High Method
Sn, Tin (ppm) 1755 122 1655 1855 Borate / Peroxide Fusion ICP
Bi, Bismuth (ppm) 318 12 308 328 4-Acid Digestion
Cu, Copper (ppm) 1529 82 1463 1596 4-Acid Digestion
Sn, Tin (ppm) 1777 42 1704 1849 Pressed Powder Pellet XRF
Ag, Silver (ppm) 1.03 0.110 0.94 1.11 4-Acid Digestion
As, Arsenic (ppm) 149 6 144 154 4-Acid Digestion
In, Indium (ppm) 10.7 1.8 9.2 12.2 4-Acid Digestion
Mo, Molybdenum (ppm) 1.68 0.23 1.51 1.84 4-Acid Digestion
Pb, Lead (ppm) 26.7 0.80 26.3 27.0 4-Acid Digestion
Zn, Zinc (ppm) 1706 123 1617 1795 4-Acid Digestion
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Certificate DataPack SDS NRAM (223 KB)
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    Price
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  • 10g Sachet
    $3.30
    2,800 +
  • 500g Jar
    $165.00
    45
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CRM Group