Chromites are also called chrome iron ore, or chromic iron ore. It is an oxide mineral belonging to the spinel group. Magnesium can substitute for iron in variable amounts as it forms a solid solution with magnesiochromite; substitution of aluminium occurs leading to hercynite. Chromites should be crushed or pulverized to grain or powder after mined and separation. The common pulverizer and crusher... More

Emerald micro powder grinding mill industries in Zambia Emerald is a variety of the mineral beryl colored green by traces amounts of chromium and sometimes vanadium. The emerald deposits of Zambia in the Kafubu River, about 45km southwest of Kitwe, produced around 20% of world production of gem quality emeralds. According to one legend, in the middle ages, the emerald ground into powder, used to st... More

Hornblende is black and, like all amphibole minerals, is characterized by two perfect cleavages that intersect at about 60 or 120. Instead of breaking in broad, single cleavage planes like the micas, the cleavage surface of an amphibole mineral tends to display a large number of small, offset planes that help give the mineral a splintery appearance. The large number of small offset cleavage planes... More

Introduction of vibrating feeder: Vibrating Feeder is a kind of linear direction feeding equipment. It features smooth vibrating, reliable operation, long service life and being suitable for feeding. They are widely used in mining, building... More