Because of the remarkable hardness of sapphires – 9 on the Mohs scale (the third hardest mineral, after diamond at 10 and moissanite at 9.5) – sapphires are also used in some non-ornamental applications, such as infrared optical components, high-durability windows, wristwatch crystals and movement bearings, and very thin electronic wafers, which are used as the insulating substrates of special-purpose solid-state electronics such as integrated circuits and GaN-based blue LEDs. They also may be created synthetically in laboratories for industrial or decorative purposes in large crystal boules. Commonly, natural sapphires are cut and polished into gemstones and worn in jewelry. Pink-colored corundum may be classified either as ruby or sapphire depending on locale. Red corundum stones also occur, but are called rubies rather than sapphires. It is typically blue, but natural "fancy" sapphires also occur in yellow, purple, orange, and green colors "parti sapphires" show two or more colors. The name sapphire is derived via the Latin sapphirus from the Greek sappheiros ( σάπφειρος), which referred to lapis lazuli. Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminium oxide ( α- Al 2 O 3) with trace amounts of elements such as iron, titanium, cobalt, lead, chromium, vanadium, magnesium, boron, and silicon. Glass European Beads, Large Hole Beads, with Brass Core, Rondelle, Mixed Color, 9x14x14mm, Hole: 4.The 423- carat (85 g) blue Logan Sapphireīoth growth twins (in various orientations) and polysynthetic glide twinning on the rhombohedron [10 11Ĭoefficient of thermal expansion (5.0–6.6) ×10 −6/K
#Glass gems bulk free
Red Enamel Alloy Pendants, Cadmium Free & Lead Free, Lovely Christmas Gingerbread Man, with Rhinestone, Nice for Holiday Jewelry Making, Golden, about 11mm wide, 22mm long,1.5mm thick, hole: 3mm Rack Plating Alloy Enamel Beads, Cadmium Free & Nickel Free & Lead Free, Mixed Color Alphabet with Other Symbol, Light Gold, Letter A~Z, 29pcsĪlloy Pendant Cabochon Settings, with Crystal Rhinestone, Cadmium Free & Lead Free, Heart with Wing, Light Gold, Crystal, Tray: 26.5x32.5mm, 47.5x107.5圆mm, Hole: 15mm 15mm Inner Dry Flower Glass Gabochons, Half Round/Dome, Mixed Color, 29.5~30x8mm Transparent Dark Orange Acrylic Beads, Horizontal Hole, Mixed Letters, Flat Round with White Letter, 7x4mm, Hole: 1.5mm, 100pcs/Bagġ5 Colors Eco-Friendly Handmade Polymer Clay Beads, Disc/Flat Round, Heishi Beads, Mixed Cowrie Shell Beads, Brass Bead Spacers, Tibetan Style Pendants and Strong Stretchy Beading Elastic Wire, Mixed Color, 6x1mm, Hole: 2mm, about 190~200pcs/color, 2850~3000pcs
#Glass gems bulk series
Magibeads 12Pcs 6 Colors Square with Bowknot Pattern Cardboard Jewelry Boxes, with Sponge Inside, Snap Cover, for Necklaces, Rings and Pendants, Mixed Color, 7.2x7.2x3.5cm, 2pcs/colorĭIY Green Series Jewelry Making Kits, 620Pcs Glass Seed Round & Rondelle Beads, 80Pcs Imitation Austrian Crystal Bicone Beads, 20Pcs Teardrop Glass Charms, Test Tube, Needles, Elastic Crystal Thread, Mixed Color, Beads: 700pcs/set Tibetan Style Alloy Findings, Mixed Shapes, Cadmium Free & Lead Free, Mixed Color, 6~21圆~18x1~10mm, about 269pcs/500gīrass Micro Pave Cubic Zirconia Screw Carabiner Lock Pendant Necklaces, with Paperclip Chains, Ring, Colorful, Golden, 19 inch(48cm) Resin/Glass/Alloy/Acrylic Enamel European Beads, Large Hole Beads, Mixed Shapes, Mixed Color, Deep Sky Blue, 60pcs/boxĭIY Bracelets Making Kits, Including ABS Plastic Round & Imitation Pearl Beads, Plastic Beads, Imitation Jelly & Transparent Acrylic Beads and Elastic Stretch Thread, Mixed Color, Beads: 980~985pcs/set NBEADS Polymer Clay Rhinestone European Beads, Large Hole Rondelle Beads, with Platinum Plated Alloy Cores, Mixed Color, 10~12x7mm, Hole: 5mm, 100pcs/box
DIY Bracelet Making Kits for Girls, 240Pcs 4 Colors Acrylic Round Beads, 24Pcs Peach & Elephant & Rainbow Alloy Enamel Pendants, Brass Jump Rings and Elastic Crystal Thread, Mixed Color, 294Pcs/Set
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