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Specific gravity or the density of a mineral
relative to water, is helpful in the case of some minerals like gold or
galena, that have a high specific gravity. The attraction of a mineral
to a magnet (magnetism) is helpful especially for the mineral,
magnitite which is naturally magnetic.
Some minerals that belong to the carbonate mineral
family fizz when a drop of dilute HCl (acid) is put on it. Certain
minerals like halite (salty) and sulfur (bitter) have characteristic
tastes.
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Magnitite
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