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Thursday, December 4, 2014

Teknologi Pengolahan Material

Geology – Mining – Processing

All 3 aspects must be favorable to make a deposit economically viable

Geology:  Find it.  Is it big enough to be economic?
Mining: Dig it. Is it economically recoverable from the ground?
Processing: Extract it.  Is it economically separable from the host rock?


Ore : Rock that contains a mineral or minerals in sufficient quantities as to make commercial extraction (mining – milling) profitable.

Grade : A measure of concentration of a mineral/metal contained in rock (or ore).  Gold and other precious metals – g/t or oz/t, base metals - %, uranium – kg/tonne, rare earth elements – ppm…

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