£11.28 – £280.00 ex VAT
Gold (Au) mineral reference material for geological assay and mining projects. Composed of basalt, feldspar and iron pyrites with gold. Tested to show: 0.225 μg/g (ppm) with a 95% confidence interval at +/- 0.002 μg/g.
Reference material for gold, composed of feldspar, basalt and iron pyrites minerals with minor quantities of finely divided gold-containing minerals that have been screened to ensure there is no gold nugget effect. Tested to show 0.225 μg/g (ppm) with a 95% confidence interval at +/- 0.002 μg/g. The material is a fine, light grey powder which has been well mixed and a homogeneity test carried out. The powder is sealed in to polythene sachets at 50 grams each or supplied in a 2.5 kg sealed jar.