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Hematite
Visual Art Medium

Hematite, also spelled as haematite, is the mineral form of iron oxide, one of several iron oxides. Hematite crystallizes in the rhombohedral lattice system, and it has the same crystal structure as ilmenite and corundum. Hematite and ilmenite form a...

Hematidrosis
Disease or medical condition

Hematidrosis is a very rare condition in which a human sweats blood.