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A diamond. Actually, a diamond can be scratched my other minerals.
In order to extract a metal from its mineral you need to have some solubility of that mineral, otherwise it will take too long. Let's say 2% solubility looks as a rational minimum
Amber is not a mineral, hence it cannot be a silicate. Amber is fossilized tree resin.
Chromium is a shiny metal, which prevents objects from corrosion, scratches, etc. However, chromium metal is very expensive and objects cannot be made from it. Therefore, a layer of chromium is used to deposit on objects through the process of electroplating.
minerals cannot form from materials that were once part of a living thing. for example a crystal that falls out of a tree or is made by a tree is not inorganic so it doesn't count as a mineral
Pyrite
Corundum- which can only be scratched by diamond. Diamond cannot be scratched by any other mineral.
A diamond. Actually, a diamond can be scratched my other minerals.
A diamond is the only material that cannot be scratched by any other than itself.
A diamond is the hardest mineral. A diamond can scratch all other minerals or rocks and cannot be scratched by another mineral or rock except another diamond.
Dolomite. I think.
There is none because diamond is at the top of the scale so it can scratch anything.
Diamond is the hardest known natural element/mineral. It cannot be marked. However, and conversely it can mark other objects.
On the Mineral Scale: 2 General Hardness: Softer than the human finger nail
talc
No. As you can see, diamond is the strongest mineral. It cannot be broken simply like a glass (it doesn't break when youknock it off the table with your elbow and land on the floor). Diamond scratches other minerals, but they cannot scratch it.
A mineral cannot be organic. A mineral cannot be made by or composed of life forms.