Dolomite
An important sedimentary and metamorphic mineral, found as the principal mineral in dolostones and metadolostones, and as an important mineral in limestones and marbles where calcite is the principal mineral present. Also found as a hydrothermal vein mineral, forming crystals in cavities; and found in serpentinites and similar rocks.
Luster- non-metallic (pearly and brilliant luster)
color- white, gray, reddish-white, pink
Hardness scale- 3 1/2 - 4
magnetic- no
streak- white
Does the mineral break in even planes or does it break in irregular or uneven surfaces? - it breaks in uneven surfaces
Clevage- Perfect On {1011}.
Fracture- Sub-Conchoidal
Density (measured)- 2.84 - 2.86 g/cm3
Crystal System-Trigonal
An important sedimentary and metamorphic mineral, found as the principal mineral in dolostones and metadolostones, and as an important mineral in limestones and marbles where calcite is the principal mineral present. Also found as a hydrothermal vein mineral, forming crystals in cavities; and found in serpentinites and similar rocks.
Luster- non-metallic (pearly and brilliant luster)
color- white, gray, reddish-white, pink
Hardness scale- 3 1/2 - 4
magnetic- no
streak- white
Does the mineral break in even planes or does it break in irregular or uneven surfaces? - it breaks in uneven surfaces
Clevage- Perfect On {1011}.
Fracture- Sub-Conchoidal
Density (measured)- 2.84 - 2.86 g/cm3
Crystal System-Trigonal
http://geology.about.com/od/rocks/ig/sedrockindex/rocpicdolomite.htm