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Lapis Lazuli Composition and Color by GIA
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=wYlJCd0blVU
http://gia.edu/gem-encyclopedia • • Lapis Lazuli Composition and Color by GIA. What makes up the composition and lapis lazuli color? Lapis is a beautiful gemstone; an aggregate of several minerals, mainly lazurite, calcite and metallic pyrite. In this video, learn about the properties of rough lapis lazuli and the lapis blue color that makes this gem valuable. The finest lapis has uniform body color, free of visible pyrite and calcite. Lapis lazuli is treasured the world over for its beautiful deep blue color. Medium to dark blue stones are more valuable than lighter ones. Calcite veins or splotches also bring down the value of lapis lazuli. Mined from Afghanistan, there are various quality levels available to consumers. It is a hard material, an 8 out of 10, and is easy to polish with the right equipment. • Learn more about lapis lazuli with GIA's gem encyclopedia: http://www.gia.edu/lapis-lazuli • • Lapis Lazuli Quality Factors: http://www.gia.edu/lapis-lazuli-quali... • • Lapis Lazuli Description: http://www.gia.edu/lapis-lazuli-descr... • • Lapis Lazuli Buyer’s Guide: http://www.gia.edu/lapis-lazuli#buyer... • • Lapis Lazuli History and Lore: http://www.gia.edu/lapis-lazuli-histo... • • Lapis Lazuli Care and Cleaning: http://www.gia.edu/lapis-lazuli-care-... • The Official GIA Channel on YouTube is also a great resource for lapis lazuli knowledge • • Identifying Old and New Sources of Lapis Lazuli: • Identifying Old and New Sources of La... • • Examining Denim and Other Lapis Lazuli: • Video • • Buying and Polishing Lapis Lazuli From Afghanistan: • Buying and Polishing Lapis Lazuli Fro... • • Lapis Lazuli Mine Locations and Qualities: • Lapis Lazuli Mine Locations and Quali... • GIA exists to connect people to the understanding of gems. Our videos provide more information on diamonds, gems, and other related topics • • How to Choose a Diamond | GIA Diamond Grading Guide: • How to Choose a Diamond: 10-Minute GI... • • How to Read a GIA Grading Report: • How to Read a GIA Grading Report Vide... • • Sapphire and Ruby Mine in Palin, Cambodia: • River Mining in Pailin, Cambodia, by GIA • • Mining for Emerald in Brazil: • Mining for Emeralds in Brazil by GIA • • What Attracts Us to Ruby | History: • What Attracts Us to Ruby: History by GIA • SUBSCRIBE TO OUR CHANNEL • / officialgiachannel • FOLLOW US • Facebook: / gia4cs • Blog: http://4csblog.gia.edu/ • Twitter: / gianews • Pinterest: / giapins • Google Plus: https://plus.google.com/1076590629596...
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