Description
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AMIS0547 Dolomite CaO 25.1% MgO 16.8% South Africa
Origin of Material
Dolomite is an anhydrous carbonate mineral composed of calcium magnesium carbonate, (CaMg(CO3)2. The term is also used for a sedimentary carbonate rock composed mostly of the mineral dolomite.
Approximate Mineral and Chemical Composition
Dolomitic rocks contain more than 50% of both calcite and dolomite minerals in which dolomite is more abundant than calcite. Theoretically, pure dolomite contains: CaO: 30.4%, MgO: 21.8%, CO2: 47.8%. Impurities in dolomite include clay minerals and chert.
LOI LOI1 38.2 1.8 %
F Combine2 477 71 ppm
C Combustion/LECO3 10.17 0.21 %
Hg Combine 0.05 0.02 ppm
Al2O3 XRF4 3.28 0.17 %
CaO XRF 25.1 0.43 %
Cr2O3 XRF 0.082 0.01 %
Fe2O3 XRF 2.68 0.11 %
K2O XRF 0.44 0.04 %
MgO XRF 16.8 0.72 %
MnO XRF 1.13 0.03 %
SiO2 XRF 11.4 0.31 %
TiO2 XRF 0.19 0.02 %
