A gem is almost always harder than the ore from which it came.
Diamond is a mineral and a gem. The main ore of diamond is called kimberlite.
a copper ore
No, it is a gem.
Copper ore is called CHALCOPYRITE.
To separate copper from its ore, the process is called smelting. The copper and ore are heated and the copper turns to liquid which is then poured from the smelter.
The mineral malachite is an ore of copper.
A refinery separates copper from its ore.
Most copper ore occurs as copper in combination with oxygen, yes.
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It depends upon nature of ore the most common ore of copper is Copper pyrite CuFeS2. the extraction of copper from this ore involves the following steps, 1-crushing, 2-grinding, 3-concentration of ore, 4-roastiong, 5-smelting, 6- preparation of blister copper and 7- electrorefining of blister copper.
Copper Ore.