![]() ![]() To find specific gravity, divide the weight of the amethyst by the weight of the displaced water. This is the weight of the displaced water. Subtract the beaker's original weight from this number. ![]() Weigh the beaker again, with the displaced water in it. Ganpati Jewels is online shopping site and leading place to buy amethyst gemstone online at wholesale prices.Put in the amount of water that the mineral displaced. Remove the amethyst and drain the water.Subtract the level the water is at now from its original level. Then, partially fill the beaker with water and write down the amount of water, as measured by the beaker. Then, write down the weight of the amethyst. To start, write down the weight of the beaker.X Research source You can measure specific gravity with a beaker, big enough to fit your piece of amethyst in, and a scale. For amethyst, specific gravity should be around 2.65. Specific gravity is a term used by jeweler's to ascertain the rough density of a gem. X Trustworthy Source Gemological Institute of America Nonprofit institute responsible for gemological research and education and setting gemstone buying and selling standards Go to source Authentic amethyst may have some color zoning, which can lessen its value, that's typically visible when the gem is laid flat on a white surface. X Research source This may occur in amethyst gems. Color zoning is the uneven distribution of color in a gemstone. ![]() Your gem should have different hues of purple throughout and color may change slightly in response to different lighting. Color will not be entirely consistent in authentic amethyst.Some may be so dark that, under light, they appear blackish. Some amethyst gems may be so light there is only a light purple glimmer. Some gems may have a slightly reddish undertone, but should still remain primarily purple. ![]()
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