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Bead, black tourmaline (natural), 8mm hand-cut round, B+ grade, Mohs hardness 7 to 7-1/2. Sold per 15-1/2" to 16" strand. - Fire Mountain Gems and Beads
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8mm 15.5 Inches Natural Black Tourmaline Round Beads Genuine Gemstone Natural Jewelry Making - Walmart.com
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Amazon.com: GEM-Inside 8mm Natural Black Tourmaline Gemstone Loose Beads Faceted AAA Grade Crystal Energy Stone Power Beads for Jewelry Making 15" : Arts, Crafts & Sewing
![Amazon.com: GEM-Inside 8mm Natural Black Tourmaline Gemstone Loose Beads Faceted AAA Grade Crystal Energy Stone Power Beads for Jewelry Making 15" : Arts, Crafts & Sewing Amazon.com: GEM-Inside 8mm Natural Black Tourmaline Gemstone Loose Beads Faceted AAA Grade Crystal Energy Stone Power Beads for Jewelry Making 15" : Arts, Crafts & Sewing](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/61KxIuwCPNL._AC_UF894,1000_QL80_.jpg)