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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
Oxides
[6 from 99] Amethyst. Druse korotkoprizmaticheskih crystals of 2-4 cm
The name, a brief visual description:
Amethyst. Druse korotkoprizmaticheskih crystals of 2-4 cm
Sample size:
Druse. 87h42h20 see 72.00 kg.
Place of sampling:
Brazil
Amethyst. Geode thick-walled, with crystals of 3-5 cm
Bauxite. Tight oolitic unit. Ore from SPILI.