Dolomite is one of our major sources for the concrete so essential to modern society’s road and building infrastructure. Crystals of dolomite are common in hydrothermal vein deposits and in sedimentary rocks, where they fill pores in their host rock. By volume, however, most dolomite occurs in its massive form as dolostone or mixed dolostone/limestone sedimentary rocks. These dolostone rocks originally formed as limestone.
Dolomite is one of the three most abundant carbonate minerals, calcite and aragonite being the other two. Dolomite differs from calcite and aragonite in its crystal structure. In dolomite crystals, layers of carbonate ions alternate with layers of magnesium and calcium ions, rather than only having layers of calcium ions alternate with carbonate ions as in calcite and aragonite. Dolomite crystals usually form transparent to translucent rhombs that are colorless to light-colored, although crystals may be red to brown if iron impurities are present. Some dolomite crystals also exhibit crystal faces that form slightly curved surfaces, rather than flat planes.
Color: Colorless, white, pinkish, or light tints darker colors even black when iron is present.
Luster: Glassy to Pearly
Transparency: Crystals Transparent to Translucent
Crystal System: Trigonal
Crystal Habits: Rhombahedral
Cleavage: Perfect in 3 directions
Hardness: 3.5 – 4
Specific Gravity: 2.8
Associated Minerals: Barite, Calcite, Fluorite, Sulfide ore, Quartz and Gold.
|Elements||Content 1||Content 2|
|Mesh : 200 to 1250|
|Particle Size : 150 to 3 Microns|
|Brightness : 90 TO 98%|
|Whiteness : Up to 98%|
|Specific Gravity : 2.85|
|Oil Absorption : 20|
|Packing : 25/50Kg.|
|Colour : Super Snow White|