pyrrhotite's Usage Examples:

Crystals were first found in Cornwall (at Wheal Jane, near Truro, associated with pyrrhotite) by J.

Pyrrhotite >>Magnetic pyrites or pyrrhotite has a composition varying between Fe7S8 and Fe8S9, i.

Other minerals present include diopside, pargasite, spinel, phlogopite, apatite, graphite, pyrrhotite and zircon (Davidson 1943 ).

The copper deposits are mainly in well-marked fracture planes in serpentine; the ore is pyrrhotite, with or without chalcopyrite.

Prospect, at the base of which there is a vein of pyrrhotite, with small quantities of nickel and copper.

The sulfide minerals recorded from the lodes comprise pyrite, pyrrhotite, chalcopyrite, galena, sphalerite and arsenopyrite.

In the Bay Complex narrow zones of bleached rock are rich in calcite, chlorite and pyrite and contain minor chalcopyrite and pyrrhotite.

Synonyms:

pyrrhotine, magnetic pyrites, mineral,

Antonyms:

organic,