Test gold with baking soda

How to make a baking soda test Place 1/4 teaspoon yeast in a cup and add 2 teaspoons of vinegar. False gold will immediately turn into green where acid is. How can you test a diamond at home? To say if your diamond is real, place the stone in front of the mouth and, like a mirror, vent the breath. If the stone remains intact for a few seconds ... ................
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