OREAS 141

OREAS 141 is a medium 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 141 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 141 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) 6061 339 5794 6327 Borate / Peroxide Fusion ICP
Bi, Bismuth (ppm) 324 29 303 344 4-Acid Digestion
Cu, Copper (ppm) 2453 98 2387 2518 4-Acid Digestion
Sn, Tin (ppm) 6312 259 5944 6680 Pressed Powder Pellet XRF
Ag, Silver (ppm) 1.58 0.110 1.51 1.65 4-Acid Digestion
As, Arsenic (ppm) 789 29 767 812 4-Acid Digestion
In, Indium (ppm) 34.0 5.0 29.0 39.0 4-Acid Digestion
Mo, Molybdenum (ppm) 2.28 0.29 2.08 2.49 4-Acid Digestion
Pb, Lead (ppm) 59 3.8 57 61 4-Acid Digestion
Zn, Zinc (ppm) 3637 178 3502 3771 4-Acid Digestion
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Certificate DataPack SDS NRAM (223 KB)
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  • Pack Size
    Price
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  • 10g Sachet
    $3.30
    8,100 +
  • 500g Jar
    $165.00
    172
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CRM Group