Dioptase, copper silicate


100 g (jar) – 397,68 €

3946,82 € / 1 kg

< 40 µ, rare emerald-green to bluish green mineral




Dioptase is well suited as a pigment because of its not too high hardness. The complex copper silicate has a good light fastness, but discolors by heating – possibly even strong sunlight is enough. The mineral is very rare, especially the procurement of larger crystals for pigment production is difficult. This rare bluish-green mineral is very finely ground. Dioptase has a hardness of 5, which makes it suitable for use as a pigment.