1. Black Tourmaline 2. All Black Tourmaline can be made with gold or silver plated (pendants, connectors, rings, bracelets) 3. Customized design 4. Different sizes 5. Direct From Manufacturer-Exporters 6. Wholesale Prices & Excellent Quality...
We are offering tourmaline 【properties and structure of a tourmaline】 tourmaline is a kind of silicate minerals boron-aluminum with boron-containing characterized and aluminum, sodium, iron, lithium cyclic structure. The chemical formula is...
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