The mineral is called bornite.
switzerland
No
Diamond is the hardest known mineral, which is a physical property of the mineral.
Diamond is the hardest mineral known.
The hardest mineral is diamond, and the softest mineral is talc.
not one hundred per cent sure but believe it's balsa wood
The softest known mineral is 'TALC'. The hardest known mineral is 'DIAMOND' (according to Friedrich Mohs scale)
Diamond is the hardest mineral known.
The mineral is called bornite.
Oil is the most-known mineral fuel.
Each known mineral has a specific chemical composition.
Diamond is the hardest mineral currently known and is an allotrope of carbon.
Emerald is a mineral. Specifically, it is a variant of the mineral known as beryl.
yes
luster
the answer is talc.