reclamation
Chlorine itslf is not mined. The materials used to produce chlorine (NaCl) is mined. Chlorine is produced by electrolytic reaction of a chloride solution (e.g. NaCl) in a process involving a diaphragm cell or a mercury cell. The mercury cell process has been largely discontinued because of its associated loss of mercury to the environment.
it is mined in Spain
steel is not mined it is man made
it is mined using surface mining
sodium chloride (NaCl) or table salt can be man made but it is mined on a commerical scale across the globe. This is because sodium chloride is made through the natural process of evaporation of salt water and the salt is crystallised and is so mined.
sulfur
They were and still are. Copper is what is mined, but Gold, Silver and Molybdenum are also extracted during the process as by-products.
Coal is mined from underground.
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Chlorine itslf is not mined. The materials used to produce chlorine (NaCl) is mined. Chlorine is produced by electrolytic reaction of a chloride solution (e.g. NaCl) in a process involving a diaphragm cell or a mercury cell. The mercury cell process has been largely discontinued because of its associated loss of mercury to the environment.
The cooling and solidification of magma.
Asbestos is generally manufactured by processing mined asbestos fibers.
Thorium can be strip mined and it could be deep mined. It is be produced as a byproduct of the production of rare earth elements, and since the current production as a byproduct far exceeds the demand, it is not usually mined.
Gas is mined as crude oil and then it goes through a process and it becomes gas.
Most diamonds are mined with an open-pit mining process. You can read more, below.
Calicite is mined in same way that limestone is mined which entails just collecting the deposits. However, the production s quite an involving process which starts with the separation of different grades and removal of unwanted impurities. It is then crushed and subjected to froth flotation.
Salt is mined, so it would be pure salt. Mined salt, unlike sea salt, has to be processed and cleaned. Chemicals are used for the cleaning process and for making it white.