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All diamonds, regardless of the colour, are formed from carbon. Brown is the most common colour of gem-quality diamond found.
Brown coal -- lignite -- is sometimes called the 'brown diamond'.
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Which is the softest and the hardest mineral?
The softest known mineral is 'TALC'. The hardest known mineral is 'DIAMOND' (according to Friedrich Mohs scale)
What mineral is the hardest known substance in the nature?
Diamond
What is the hardest mineral in this group?
Silicon Dioxide (known as Quartz) is not the hardest mineral, the hardest mineral is an allotrope of carbon called diamond. Quartz is only the 7th hardest mineral.
What mineral can only be scratched by one mineral?
Corundum- which can only be scratched by diamond. Diamond cannot be scratched by any other mineral.
Is diamond a mineral resource?
Diamonds are minerals. Rocks are mad up of minerals, so tectonically it is both. But scientists all believe that a diamond is a mineral. Go to wikipedia.org\minerals
Which mineral is known as the brown diamond?
One kind of brown diamond is a diamond, formed from carbon.
What is hardest mineral and what is the softest?
The hardest mineral is diamond, and the softest mineral is talc.
What is the hardest mineral known?
Diamond.
What are the charcteristics of diamond?
Diamond is the hardest mineral known.
How stiff is a diamond?
Diamond is the hardest mineral known.
Which mineral is the hardest on the scale?
Diamond is the hardest mineral known.
Is there an object as hard as a Diamond?
Diamond is the hardest known mineral.
Which is harder talc or diamond?
Diamond is the hardest mineral known.
Which is harder a diamond or toungston?
Diamond is the hardest mineral known.
Is obsidian is harder than diamond?
No, diamond is the hardest known mineral.
Is diamond stronger or obsidian?
Diamond is the hardest natural mineral known.
Which is the softest and the hardest mineral?
The softest known mineral is 'TALC'. The hardest known mineral is 'DIAMOND' (according to Friedrich Mohs scale)
