PENTLANDITE
PENTLANDITE Pentlandite – (Fe,Ni)9S8 -is the most common Ni sulfide, an important Ni ore like garnierite.It is the most common mineral in the Pentlandite Group; the other members of the Group are rare. Pentlandite has a chemical composition very close to the ideal formula; usually a little more Ni than Fe and generally contains some […]
PYROPHYLLITE
PYROPHYLLITE Pyrophyllite – Al2Si4O10(OH)2 – is a rarer phyllosilicate, specific to some types of metamorphic rocks. It is an important industrial mineral, an ore with many different applications whose price depends on the alumina content, other associated minerals and the Fe content, considered an impurity. It is desirable and necessary to remove Fe from the […]