haematite

/ ˌhɛm-; ˈhiːməˌtaɪt; ˌhiːməˈtɪtɪk; ˈhɛm- /

noun

Grey granite or quartz with talc in it or gneiss lie under the haematite.

We saw an old iron furnace, and masses of haematite, which seems to have been the ore universally used.

The ridges are generally hardened sandstone, marked with madrepores, and masses of brown haematite.

Another (in a well 1·5 m. deep) contained a sharp-edged bowl (XII, 53), wheel-made, covered with a wash of haematite.

Other iron oxides, like haematite and limonite, may be present as alteration-products of the magnetite.

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