0.582% Cu (Mineralized Siltstone) 10g pkg.
Certificate 93
Additional certified elements: Ag, Bi, Co, Pb, S, Sb, Se, Sn, Zn
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Standard ID
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Description of Material
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Copper ± 95% Confidence Interval (%) ‡
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OREAS 93 (-75µ) **
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Mineralized Siltstone
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0.582 ± 0.01
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‡ values via 4-acid digest; see certificates for additional certified elements via aqua regia digest.
** only available in single use nitrogen equilibrated pouches due to elevated sulphide content.