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Dense Media Separation (DMS) is becoming an increasingly popular method of mineral beneficiation that utilizes a dense medium to separate minerals based on specific

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In the case of the mines, wells, and other natural deposits listed in subsection (b), the allowance for depletion under section 611 shall be the percentage, specified

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barium sulfate. Being bright and white, wollastonite has a minimal effect on a product''s color, but it can be used as a white pigment. The amount of volatile material