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Lapis Lazuli Rough from Afghanistan
Lapis Lazuli slabs cut easily and polish well with tin or chrome oxide, with a tiny bit of aluminum oxide type A mixed in. In order to obtain a higher polish, it can be given a final polish with Zam or waxed. Lapis usually has pyrite in it.
Ruler is in INCHES.
Example of a Lapis Lazuli Cabochon.
Note: Not cut from material below.