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Au.21.04 (2.63 ppm Au, 15.09 ppm Ag)

$7.55Price
Geochemical reference standard for gold concentration. Processed from calcareous silstone and limestone ore material. 
60 grams
Quantity

  • Additional metal concentrations

    As Cu Mn Pb Sb W
    3917.0 1759.5 727.7 2102.0 793.7 111.2

    Concentrations are in ppm unless otherwise noted.
    Values are for informational purposes only and not certified.

Reference materials  available in 50 or 60 gram envelopes (25 g for Li-B standards) with sticker label for records. All reference materials are sieved to -80 mesh. 

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