High Quality Content by WIKIPEDIA articles! Pentlandite is an iron-nickel sulfide, (Fe,Ni)9S8. Pentlandite usually has a Ni:Fe ratio of close to 1:1. It also contains minor cobalt. It is named after the Irish scientist Joseph Barclay Pentland (1797-1873), who first noted the mineral. Pentlandite forms isometric crystals, but is normally found in massive granular aggregates. It is brittle with a hardness of 3.5 - 4 and specific gravity of 4.6 - 5.0 and is non-magnetic. It has a yellowish bronze color. Pentlandite is the most common terrestrial nickel sulfide mineral formed from immiscible sulfide-silicate melts under normal mantle and crustal conditions.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.