Chalcedony is a cryptocrystalline form of silica, composed of very fine intergrowths of the minerals quartz and moganite. These are both silica minerals, but they differ in that quartz has a trigonal crystal structure, while moganite is monoclinic.
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3/4" 1" 19 25mm Alloy Adjustor Triglides Slide Choice Quantity: 2 5 10 25 pcs choice Material :Alloy Inner width:3/4"(19mm) or 1" (25mm) choice Color:Nickle ,black plated(Black Paint) choice Triglides working with 3/4" (19mm) or 1"(25MM) webbing or straps. Fit for backpack,handbag ,leather craft ,bags and other craft.
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Color as picture Main picture the photo under lights.
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Chalcedony is a cryptocrystalline form of silica, composed of very fine intergrowths of the minerals quartz and moganite. These are both silica minerals, but they differ in that quartz has a trigonal crystal structure, while moganite is monoclinic.
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Size: length is 9cm.
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Natural Obsidian Pisces lotus fish koi necklace Amulet pendant with bead chain. Tip: The pendant is natural obsidian, The necklace bead is man-made stone.
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