Mica is a type of mineral that occurs as flakes, books, or sheets. It is mined. They are mined using techniques that extract mica from the metamorphic rock called schist, from placer deposits, and from pegmatites.
krypton and barium are both naturally occurring non-radioactive elements. krypton can be extracted from air by fractional liquefaction. barium ore can be mined and barium extracted.
Graphite is mined in an open pit or underground. In an open pit graphite is extracted using bulldozers, and front end loaders to break up and left the product. It is extracted through drilling when it is done underground.
In English ores is the plural of ore. Ore is a mined substance which may be used directly or from which other minerals and elements can extracted.
mica has the specific gravity of 2.88
Mica is a type of mineral that occurs as flakes, books, or sheets. It is mined. They are mined using techniques that extract mica from the metamorphic rock called schist, from placer deposits, and from pegmatites.
Metals are extracted from various ores that are mined from underground.
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Diamonds are mined.
Sylvite (KCl) is mined.
bauxite is mined. it is then melted and aluminum is extracted by high temperature electrolysis of the molten bauxite.
They were and still are. Copper is what is mined, but Gold, Silver and Molybdenum are also extracted during the process as by-products.
In the past protactinium was extracted from the residues of uranium ores; now is extracted from thorium irradiated in nuclear reactors.
Its ore is mined and silver is extracted from the ore in a smelter.
Conflict diamonds are usually mined by people digging in the soil.
Erm, no coal isn't a mineral - it is a rock. I wouldn't describe it as being extracted from the bowels of the Earth - it's mined.
Salt is extracted from salt mines. It is possible to extract salt also as brine.