high purity dolomit

Ms. Stacy Xue

Marketing Excutive Superivor of Mineral Department

Specialised in Foreign Language and International Trading and Cooperation

DESCRIPTION

Dolomite is acarbonate mineralcomposed ofcalciummagnesiumcarbonateCaMg(CO3)2. The word dolomite is also used to describe thesedimentarycarbonate rock, which is composed predominantly of the mineral dolomite (otherwise known asdolostone). The mineral dolomite crystallizes in thetrigonal-rhombohedralsystem. It forms white, gray to pink, crystals.

Dolomite is a double carbonate, having a different structural arrangement, and it does not rapidly dissolve or effervesce (fizz) in dilutehydrochloric acid.Crystal twinningis common. A solid solution series exists between dolomite andironrichankerite. Small amounts of iron in the structure give the crystals a yellow to brown tint.Manganesesubstitutes in the structure also up to about three percent MnO. A high manganese content gives the crystals a rosy pink color noted in the image above. A series with the manganese richkutnohoritemay exist.Leadandzincalso substitute in the structure for magnesium. The mineral dolomite is closely related tohuntiteMg3Ca(CO3)4.

APPLICATION

Dolomite is used as an ornamental stone, a concrete aggregate, a source ofmagnesium oxideand in thePidgeon processfor the production ofmagnesium. Wherecalcitelimestoneis uncommon or too costly, dolomite is sometimes used in its place as afluxfor thesmeltingof iron and steel. Large quantities of processed dolomite are used in the production offloat glass.

Dolomite is also used as the substrate in marine (saltwater) aquariums to help buffer changes in pH of the water. Construction, glass, chemical, metallurgy, plastics, rubber, paper, ceramics, refractory material, fertilizer, filtered water, Coating, paint and refining of magnesium raw materials.

SPECIFICATION

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MANUFACTURE