Pyrite may be prepared artificially by gently heating ferrous sulphide with sulphur, or as brassy octahedra and cubes by slowly heating an intimate mixture of ferric oxide, sulphur and salammoniac. It is insoluble in dilute acids, but dissolves in nitric acid with separation of sulphur.
It has a somewhat brassy colour, and occurs massive or as hexagonal plates; it is attracted by a magnet and is sometimes itself magnetic. The mineral is abundant in Canada, where the presence of about 5% of nickel makes it a valuable ore of this metal.
Yet this never feels too brassy, unlike the First Natural Hair Band.
The Challenger is very brassy and a great effort from the group, with no overshadowing on any aspect.
A cut above bustling and brassy Blackpool, Lytham St Annes attracted gentry eager to make their homes in the town.