белый брусит

Brucite is a mineral that is not often used as a mineral specimen but does have some important industrial uses.It is a minor oreof magnesium metal and a source of magnesia.It is also used as an additive in certain refractories. PHYSICAL CHARACTERISTICS: Color is thite or colorless with shades of gray,blue and green Luster is vitreous or waxy;cleabage surfaces have a pearly luster Transparency Crystals are translucent and rarely transparent Crystal System is trigonal;bar 32/m Hardness is 2-2.5 Specific Gravity is 2.4(slightly below average) Streak is white Other Characteristics:cleavage flakes and fibers are flexible but not elastic Associated Minerals are calcite,wollastonite,nepheline,talc,aragonite,serpentine,chromite,dolomite,magnesite,periclase and other magnesium minerals.