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spinel    
n. 尖晶石

尖晶石

spinel
n 1: a hard glassy mineral consisting of an oxide of magnesium
and aluminum; occurs in various colors that are used as
gemstones


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  • Spinel - Wikipedia
    Spinel ( spɪˈnɛl, ˈspɪnəl [7]) is the magnesium aluminium member of the larger spinel group of minerals It has the formula MgAl 4 in the cubic crystal system Its name comes from the Latin word spinella, a diminutive form of spine, in reference to its pointed crystals [5]
  • 13 Gemmy Facts About Spinel - The Overlooked Gem
    A new birthstone with vivid colors that span the spectrum Spinel has a spectacular luster, excellent durability, and is a gem of growing popularity
  • Spinel Gemstone | Spinel Stone - GIA
    Spinel belongs to the cubic crystal system and its characteristic crystal shape is an octahedron, which looks like two back-to-back pyramids Like ruby, spinel is found in alluvial deposits; it ranks 8 on the Mohs scale and has good toughness, making it a durable gem for jewelry
  • Spinel Gem, Price, and Jewelry Information - Gem Society
    Spinel has often been confused for ruby or sapphire But this durable gemstone, which is rarer than a diamond, is gaining popularity due to its color, durability, and more affordable price point
  • What is Spinel? Discovery, Properties, and Origins
    Known for its vibrant colors, remarkable hardness, and a history that intertwines with some of the most famous gemstones in the world, Spinel has long held a special place in both gemological studies and jewelry craftsmanship





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