Assertion: dolomite's direction | /r/HasProperty | mohs hardness
Facets:
Source sentences:
text: Physical Properties of Dolomite Chemical Classification Carbonate Color Colorless, white, pink, green, gray, brown, black Streak White Luster Vitreous, pearly Diaphaneity Transparent to translucent Cleavage Perfect, rhombohedral, three directions Mohs Hardness 3.5 to 4 Specific Gravity 2.8 to 2.9