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List of collections
Native elements Sulfides Oxides Silicates Forms allocation of minerals Phosphates Carbonates Sulfates Halides Synthetic minerals Chromates Tungstates Gemology Jewelry and semi-precious stones Articles of stone Deposits of semiprecious raw Precious metals Minerals gold deposits
Synthetic minerals
[15 from 38] Silicon Polycrystal bright dark- grey colour
The name, a brief visual description:
Silicon Polycrystal bright dark- grey colour
Sample size:
Ore. 7*7*4 cm. 0,290 kg.
Place of sampling:
Krasnoyarsk factory of non-ferrous metals
Quartz Synthetic.Crystal of colourless quartz - ZY
Silicon Monocrystalline bevel dark- grey with tarnish