Yes, it is a rock-forming mineral, a crystalline form of aluminum oxide (Al2O3) with traces of iron, titanium and chromium. It can form transparent crystals which if colored red are called rubies and if colored blue are called sapphires.
When a mineral can scratch another mineral, it means that the mineral is harder than the mineral it can scratch. Hardness is a measure of a mineral's resistance to being scratched, with the Mohs scale commonly used to rank minerals based on their hardness.
The color of a mineral in powdered form is called the mineral's Streak
Biotite is definitely a mineral. It's in the same family as muscovite, another mineral in the mica family.
quarts
True. In general, a mineral can scratch any mineral that is softer than itself according to Mohs Scale of Mineral Hardness. This means that a mineral with a higher number on the scale can scratch a mineral with a lower number.
It is a mineral.
Non mineral
mineral
it is mineral because it is our teasure
false a mineral can not scratch any mineral harder than itself
no is not a mineral
its not a mineral
When a mineral can scratch another mineral, it means that the mineral is harder than the mineral it can scratch. Hardness is a measure of a mineral's resistance to being scratched, with the Mohs scale commonly used to rank minerals based on their hardness.
It is an elemental mineral.
It is a mineral because have you ever heard of mineral water?
Olivine is a silicate mineral. Diamond is an elemental mineral. Pyrite is a sulfide mineral. Malachite is a carbonate mineral.
The hardest mineral is diamond, and the softest mineral is talc.