pyrrhotite Min.
(ˈpɪrətaɪt)
[Altered by Dana, 1868, from prec.: see -ite1 2 b.]
A widely distributed magnetic sulphide of iron, occurring massive and amorphous, having a granular structure, and a colour between bronze and copper-red.
| 1868 Dana Min. (ed. 5) 59 The niccoliferous Pyrrhotite is the one that affords most of the nickel of commerce. 1900 in Daily News 25 July 2/1 The first cross-cut which had entered a body of solid pyrrhotite 11ft., was continued until it had passed through the vein, here 27ft. 5in. wide. |