There are many. Topaz is one.
Dolomite is a carbonate. The formula is CaMg(CO3)2
Dolomite (Magnesium Carbonate) is a sedimentary rock.
Dolomite is a mineral - calcium magnesium carbonate CaMg(CO3)2.
Dolomite is a mineral - calcium magnesium carbonate CaMg(CO3)2.
dolomite
Ankerite
CaMg (CO3)2
The mineral dolomite is classified as a carbonate mineral. Other carbonate minerals include calcite, smithsomite, rhodochrosite, cerussite, ankerite, azurite, and malachite.
Dolomite is a light-colored nonmetallic mineral. It comes in many colors including white, gray, creme, and pink. However, dolomite can also be colorless.
Dolomite is not an ore itself; it is a mineral composed of calcium carbonate and magnesium carbonate. However, the main source of magnesium is magnesite, while the main source of calcium is limestone. Dolomite can be found in sedimentary rocks as a secondary mineral.
The mineral that can scratch galena and can be scratched by dolomite is sphalerite. Sphalerite has a hardness of about 3.5 to 4 on the Mohs scale, which allows it to scratch galena (hardness 2.5 to 3) but can be scratched by dolomite, which has a hardness of 3.5 to 4.
Quartz scratches dolomite, while olivine scratches pyroxene.