VELVET BOX SOCIETY
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SPINEL

Spinel is a magnesium aluminum oxide, occurring in many colors with excellent durability. Natural spinel is really a group of related minerals in which its magnesium is substituted with other elements, like iron, manganese and zinc. Spinel is found in areas that are famous for sapphire deposits. For many centuries, most gem spinels were misidentified as sapphires or rubies because they have similar properties and occur in the same geological environments.

Spinel, like garnet and diamond, is singly refractive, with the same physical properties in all crystal directions. It belongs to the cubic crystal system, and its characteristic crystal shape is an octahedron, which looks like two back-to-back pyramids. Well-formed spinel crystals are fairly common in nature.

Spinel offers a range of hues, from orange to intense “stoplight” red, vibrant pink, and all shades of purple, blue, and violet through bluish green.  Intense reds and pinks are caused by traces of chromium. The higher the chromium content, the stronger the red hue. Orange and purple stones owe their color to a mixture of iron and chromium.  Violet to blue spinel can be colored by trace amounts of iron, and vibrant blues owe their saturated color to trace amounts of cobalt.

Spinel was recently added as an 
August birthstone, sharing this month with peridot and sardonyx. It has long been mistaken for ruby by emperors and monarchs. Many of the famous “rubies” of history were actually spinels.
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© COPYRIGHT 2017-2021. ALL RIGHTS RESERVED. .All Rights Reserved. All trademarked names, brands, models, logos, images, and graphics are the sole property of their respective trademark owners and copyright and credit to their respective owners. Timberbrook Capital, Velvet Box Society, this site, including its owners, operators, and developers, is not affiliated with nor endorsed by any watch or jewelry brand manufacturer brand or any subsidiaries thereof, in any way.
  • Home
  • Antique & Vintage
    • Latest Finds
    • Shop By Era
    • Engagement Rings
    • Cocktail Rings
    • Timepieces
    • Gentlemans Accessories
    • Bracelets
    • Earrings
    • Necklaces & Pendants
    • Diamonds & Gems
    • From The Vault
    • The Archives: A Collection of Sold Items
    • Final Sale Items
  • Custom
    • Custom Jewelry
    • Custom Engagement Rings
    • Recreating an Heirloom
    • Family Crest Jewelry
    • Design Process
    • Schedule Consultation
    • For The Trade
    • More For The Trade
  • Sell To Us
  • Services
    • Appraisal Services >
      • Jewelry Insurance
      • Appraisals
      • SELL TO US
      • Exchange
      • Museum Collection Services
    • Schedule Consultation
    • Custom Jewelry Design
    • Recreating an Heirloom
    • Jewelry Repair
    • Timepiece Repair
    • Diamond Cutting and Gemstone Repair
    • Find Jewelry For Me
    • Find a Watch For Me
    • Find a Diamond
    • Jewelry Rental
    • Insurance Replacement
    • Private Collection Management
    • Layaway Plan
    • Consignment
    • Wholesale Inquiries >
      • Host a Trunk Show
  • The Brand
    • Our History >
      • Sustainability
      • Military and First Responder Discounts
      • Kimberly Process
    • Our Experts
    • Jewelry School >
      • Educational Session
      • Eras of Style >
        • Ancient
        • Medieval & Renaissance
        • Baroque & Rococo
        • Georgian
        • Victorian
        • Edwardian
        • Art Nouveau
        • Arts & Crafts
        • Art Deco
        • Retro
        • Hollywood Glam
        • Mid-Century Modern
        • Brutalist
        • Art Organique
        • Contemporary
        • Simplistic
      • Diamonds & Gems >
        • Gemstone Education >
          • Gemstone Laboratories
          • All About Gemstones
          • Approximate Gemstone weights
          • Carat to MM Conversion
          • Gemstone Colors
          • Created, Synthetic & Simulated Gemstones
          • Equivalents Chart
        • Diamond Education >
          • Diamond Carat Weight by MM
          • Comparative Round Size Info
          • Diamond Cutting and Gemstone Repair
          • Lab Grown Diamonds
      • Counterfeit Jewelry & Watch Identification
      • Engagement Rings
      • Diamond Earrings
      • Timepieces >
        • Vintage Rolex
        • Watch Terms
      • Ring Designs & Sizings >
        • Men's Wedding Band Finishes
        • Ring Width
        • Ring Size
        • Wrist Size
      • Custom Jewelry
      • Metals
      • Engraving
      • Birthstones
      • Jewelry Care
      • Jewelry Terms
    • Makers Biographies
    • Press
    • Be Social
    • Gems by VBS The BLOG
    • Reviews
    • Advice >
      • The Courtship
      • The Wedding
    • Events
    • Holiday Shipping
    • Careers
    • Affiliate Program
  • Contact