Natural gemstone powders are now available from stock in quantities as small as 10 grams for research purposes. powders of emerald, moonstone (multicolour), opal, peridot, topaz (yellow imperial), and turquoise are available.
These gemstone powders are from natural, not synthetic, gemstones. Due to the fine size of the powder particles, the powders do not necessarily resemble the gemstone.
Dozens of other gemstone and mineral powders can also be supplied as a special order. Goodfellow
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