Diamonds are mined.
Coal, graphite, diamonds...
when diamonds come out of the ground they are rough and not as pretty as in jewelery stores
Well, you have to get them from someplace. They have to be extracted from the ground before they can be processed.
Oil is extracted from the ground by drilling down hundreds of feet into the earth. Once a discovery is located, a pipe is inserted through which the oil ascends to ground level and is captured into containment areas
Diamonds are mined from geologic rock formations containing the ore kimberlite. The "pipes", or ore lodes, are found worldwide, in places such as South Africa, India, and Australia. (see the related link).
Raw diamonds are mined from the earth around kimberlite pipes that erupt this material to the earth's surface.
how is Hydrogen extracted from the ground
Coal, graphite, diamonds...
Diamonds are mined, sorted, and the 25% of them graded with potential gem-stone quality are processed into cut and faceted gemstones. The remaining diamonds are sold as bort, or industrial diamonds.
when diamonds come out of the ground they are rough and not as pretty as in jewelery stores
Conflict diamonds are usually mined by people digging in the soil.
with special tools
Well, you have to get them from someplace. They have to be extracted from the ground before they can be processed.
Some diamonds may be included in kimberlite.
The ground
Salt is extracted from salt mines.
the pounded by there and not boiled