Dolomite

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Dolomite<ref>http://webmineral.com/data/Dolomite.shtml viewed on 09/06/2011</ref><ref>http://www.mindat.org/min-1304.html viewed on 09/06/2011</ref>
Mineralogical name Dolomite
Chemical name Calcium magnesium carbonate
Trivial name Compound spar
Chemical formula CaMg(CO3)2
Other forms
Crystal system trigonal
Crystal structure
Deliquescence humidity 20°C
Solubility (g/l) at 20°C 0.078 g/l (18°C)
Density (g/cm³) 2.85-2.95 g/cm³
Molar volume
Molar weight 184.41 g/mol
Transparency transparent to translucent
Cleavage perfect
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments slowly soluble in 2M HCl
Crystal Optics
Refractive Indices no = 1.679-1,698
ne = 1.502-1.513
Birefringence Δ = 0.177-0.185
Optical Orientation negative
Pleochroism
Dispersion
Used Literature


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