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mining. SECTION 3: Introduction into gemstones. SECTION 4: Materials and equipment for lapidary and gem processing. SECTION 5: Introduction to lapidary
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A gemstone is a piece of mineral crystal which, in cut and polished form, is used to make jewelry or other adornments. However, certain rocks (such as lapis lazuli and opal) and occasionally organic materials that are not minerals (such as amber, jet, The heating process has been well known to gem miners and cutters for
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