
sedimentary
Dolomite
Dolomite is a sedimentary carbonate rock mainly made of the mineral dolomite, often resembling limestone.
Hardness 3.5–4India
Showing all stones commonly used for mineral specimens
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sedimentary
Dolomite is a sedimentary carbonate rock mainly made of the mineral dolomite, often resembling limestone.

Native Element
Sulphur (native sulfur) is a bright yellow native element mineral often associated with volcanic and geothermal environments. It’s valued as a mineral specimen and historically used in industry.