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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
[9 from 99] hematite (The red glass head). Kidney-shaped unit.
The name, a brief visual description:
hematite (The red glass head). Kidney-shaped unit.
Sample size:
Ore. 6x4, 5x3, 2 cm, 0.234 kg.
Place of sampling:
The field Kishkins Sor, Kazakhstan.
Wolframite. Unit (see 3h3h2) plate-like crystals of wolframite in the q...
Haematite (Glass, red head). Budded aggregate