Dolostone
Rock
Also called Dolomite rock
About it
Looks like limestone but is mostly dolomite, so it barely fizzes in cold acid unless powdered, and often weathers buff. Builds the Dolomites of Italy and the cap rock of the Niagara Escarpment.
- Type
- Rock (sedimentary)
- Group
- Sedimentary (chemical)
- Hardness (Mohs)
- 3.5–4
- Specific gravity
- 2.5–2.9
- Lustre
- dull
- Colours
- grey, cream, tan, buff, pinkish
- Transparency
- opaque
Typical values: real specimens vary. For more, see mindat.org.