Natural gemstone or semi precious stone comes from mineral. Due to the naturality, the stones may have tiny flaw. Meanwhile, cutting or polishing also makes every piece of gemstone vary in color and size.
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Gemstone Beads, Natural Blue Chalcedony, Grade AB, SkyBlue
Size: about 6~10mm wide, 12~19mm thick, hole: 0.5mm, 16", 46g/strand
Blue Chalcedony are made of silica minerals, but they differ in that quartz has a trigonal crystal structure. Chalcedony has a waxy luster, and may be semitransparent or translucent. It can assume a wide range of colors, but those most commonly seen are white to gray, grayish-blue or a shade of brown ranging from pale to nearly black. Blue Chalcedony beads great for jewelry which moves office to elegant dining.