potassium feldspar
Quartz scratches dolomite, while olivine scratches pyroxene.
Quartz scratches dolomite but is scratched by olivine. Dolomite has a Mohs hardness of 3.5-4, while quartz has a hardness of 7. Olivine, on the other hand, has a higher hardness of 6.5-7.
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.
Dolomite has a Mohs hardness of 3.5 to 4, making it relatively soft compared to many other minerals. It can be scratched easily with a knife or nail, but can scratch materials like calcite.
Dolomite has a hardness of about 3.5 to 4 on the Mohs scale, which means it can be scratched by materials that are harder, such as a knife blade. Most common knives, made of steel, typically have a hardness greater than 4, so they can scratch dolomite. However, the ease of scratching may depend on the specific type of knife and the condition of both the knife and the dolomite surface.
willemite
Olivine is a silicate mineral. Diamond is an elemental mineral. Pyrite is a sulfide mineral. Malachite is a carbonate mineral.
Dolomite is a carbonate. The formula is CaMg(CO3)2
Diamond is the hardest mineral and can only be scratched by another diamond.
A diamond. Actually, a diamond can be scratched my other minerals.
Dolomite is a mineral - calcium magnesium carbonate CaMg(CO3)2.
Dolomite (Magnesium Carbonate) is a sedimentary rock.