Assertion: dolomite's color | /r/HasProperty | black
Facets:
Source sentences:
text: The commonest color is a deep red, also, brown, yellow, apple-green, black; powder, white; luster, glassy or resinous ; H = 6.5 to 7.5; G = 3.15 to 4.3; crystals, in cubic system; has no true cleavage, but sometimes has a regular break, called parting.
text: Hardness 3.5-4 Associated include calcite sulfide ore minerals fluorite barite quartz and occasionally with gold Minerals Chemical/Typical composition white Color often pink or pinkish and can be colorless, white, yellow, gray or even brown or black when iron is present in the crystal Characteristics Unlike calcite, effervesces weakly with warm acid or when first powdered with cold HCl Luster pearly to vitreous to dull Field Indicators typical pink color, crystal habit, hardness, slow reaction to acid, density and luster
text: Hardness 3.5-4 Associated include calcite sulfide ore minerals fluorite barite quartz and occasionally with gold Minerals Chemical/Typical composition white Color often pink or pinkish and can be colorless, white, yellow, gray or even brown or black when iron is present in the crystal Characteristics Unlike calcite, effervesces weakly with warm acid or when first powdered with cold HCl Luster pearly to vitreous to dull Field Indicators typical pink color, crystal habit, hardness, slow reaction to acid, density and luster Dolomite Packing
text: Common colors are black, grey, white, yellow or brown.
text: The most common colors are black and shades of gray.