marcasite

Noun

Meaning

A sulphide of iron resembling pyrite or common iron pyrites in composition, but differing in form; white iron pyrites.

Source: Webster's dictionary

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Hypernyms

Examples

Marcasite jewelry does not actually contain the mineral marcasite. Source: Internet

Pyrite and marcasite commonly occur as replacement pseudomorphs after fossils in black shale and other sedimentary rocks formed under reducing environmental conditions. Source: Internet

This polymorphism extends to other sulfides with the generic AX 2 formula; these two groups are collectively known as the pyrite and marcasite groups. Source: Internet

This problem appears to be significantly worse if any marcasite is present. Source: Internet

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