A substance introduced to a reaction to modify the characteristics of the reaction
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Tag: <span>C</span>
A sedimentary ore of secondary accumulation and not unlike a natural cement, it is usually mined for heavy minerals, occurs as reddish-brown to beige or even white calcareous material.
A sudden and extensive geologic event
A drill bit where the diamond set crown has been cast into a mould
The depth of a borehole to where casing is entered
The study or art of mapmaking
A process using activated carbon (wood or coconut shells) in ore pulp to absorbed precious metals and cyanide solution
Containing carbon
Originating from fossilized carbon and oil
A compound of carbon plus one or more metals or minerals