Gravity separation is based on the difference in the ____ of the ore and the gangue particles.

solubility

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density

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magnetic properties

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texture

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Solution

The correct option is B density
Gravity separation is one of the method used for concentration of ore. This process is based on the difference in the density of the ore and the gangue particles.
During this process, finely powdered ore is treated with a stream of water. The lighter gangue particles are washed away leaving behind the heavier ore particles.
This method is particularly applicable for heavier ores like cassiterite and haematite.

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