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Barite (Baryte) (1)
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Black Kyanite (4)
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Blue Opal (11)
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Blue Tourmaline (Indicolite) (3)
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Boji Stones (2)
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Brown Tourmaline (Dravite) (11)
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Bismuth (6)
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Black Moonstone (13)
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Black Obsidian (31)
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Black Onyx (15)
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Black Tourmaline (42)
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Bloodstone (9)
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Blue Beryl (5)
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Blue Calcite (12)
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Blue Chalcedony (6)
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Blue John Fluorite (10)
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Blue Kyanite (54)
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Blue Lace Agate (10)
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Blue Obsidian (14)
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Blue Sapphire (19)
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Blue Topaz (11)
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Botswana Agate (12)
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Brandberg (6)
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Brazilianite (2)
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Bronzite (9)
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Brucite (9)
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Buddstone (5)