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No, because they are too heavy. The only rock that will sometimes float on water is pumis.

Although, you may coat small (roughly 1mm diameter) diamonds in pine oil and then they will float.

They are presently using a process called froth flotation to remove diamonds from gangue minerals at a mine called EKATI in Canada. Diamonds are naturally hydrophobic, you just need them to be small enough so that the force exerted by the surface tension outweighs the force applied by gravity.

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14y ago

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