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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
[4 from 99] agate Polished slate-gray banded agate with drusoid quartz in the center.
The name, a brief visual description:
agate Polished slate-gray banded agate with drusoid quartz in the center.
Sample size:
Ore. 14h11h2, 5 cm 0,814 kg.
Place of sampling:
Kolyma River basin.
Agate. Tonkopoloschaty drusoid with gray agate quartz in the center. Po...
Amethyst. Geode thick-walled, with crystals of 3-5 cm