Why and How to Cleanse your Crystals and Gemstones - Pinny sez: I can't vouch for all of these, but some are good. Best is water bath, then sunlight to charge, or leave for a day or so on a citrine cluster (not amethyst). Burying in earth for a da
Gallium- It has a melting temperature of about 85 degrees Fahrenheit, which is basically room temperature. If you hold this metal it will begin to melt in your hand.