• Andesine - Wikipedia

    en.wikipedia.org/wiki/Andesine Andesine is a silicate mineral, a member of the plagioclase feldspar solid solution series. Its chemical formula is (Ca, Na)(Al, Si) 4 O 8, where Ca/(Ca + Na) (% anorthite) is between 30–50%.The formula may be written as Na 0.7-0.5 Ca 0.3-0.5 Al 1.3-1.5 Si 2.7-2.5 O 8.. The plagioclase feldspars are a continuous solid solution series and as such the accurate identification of individual ...
  • Andesine: The gemstone Andesine-labradorite information ...

    www.minerals.net/gemstone/andesine_gemstone.aspx Andesine is a red feldspar gemstone, sometimes with greenish hints and a slight labradorescent effect. Andesine is a relatively new gem on the market. It first appeared in 2003, though its exact origins were never fully disclosed.
  • The Mystery of Andesine-Labradorite - GemSelect

    www.gemselect.com/other-info/andesine-mystery.php Andesine is a member of the group of minerals known as feldspars. In the gemstone world, moonstone is another famous feldspar. But moonstone is an orthoclase feldspar while andesine is one of the plagioclase feldspars, which include oligoclase, andesine, labradorite and bytownite. All the members of the plagioclase group are a mixture of albite ...
  • Andesine | Definition of Andesine by Merriam-Webster

    www.merriam-webster.com/dictionary/andesine Andesine definition is - a triclinic feldspar intermediate between albite and anorthite that is an ingredient of andesite.
  • Andesine-Labradorite Gem Guide and Properties Chart | JTV.com

    www.jtv.com/library/gemopedia/andesine-labradorite Andesine-Labradorite is a beautiful crystalline gem that is a combination of two feldspar varieties: andesine and labradorite. Its name "andesine" refers to the Andes Mountains where andesine was first found and the name "labradorite" was derived from Labrador, Canada, where labradorite was first discovered.
  • Andesine: The plagioclase feldspar mineral Andesine info ...

    www.minerals.net/mineral/andesine.aspx Andesine was named after its original occurrence in the Andes Mountains of South America. Andesine belongs to the Plagioclase Feldspar group, an isomorphous solid solution series. Albite is one member, containing sodium and no calcium. The other end member, Anorthite, contains calcium and no sodium.Andesine is an intermediary member of this series.
  • Andesine definition and meaning | Collins English Dictionary

    www.collinsdictionary.com/dictionary/english/andesine Andesine definition: a feldspar mineral of the plagioclase series consisting of an aluminium silicate of... | Meaning, pronunciation, translations and examples
  • Andesine Average Retail Prices (value charts per carat) in ...

    gemval.com/chart/andesine Andesine is a type of feldspar silicate mineral that was first discovered in 1841 in Colombia. In the early 2000s a few red exemplars appeared on the market, although it was later discovered that they were artificially colored. The lack of proper authentication is one of the challenges when estimating andesine's value.
  • Jewelcutter.com - The Great Andesine Scam by Gary Kratochvil

    www.jewelcutter.com/articles/andesine_scam.htm This article discusses red andesine as that is the color for which I have the most photographic evidence. Please note that the green andesine and bicolor andesine all fall into the same treatment methods. As I gather more photos I will update this page.
  • Andesine | Housekihime Wiki | Fandom

    housekihime.fandom.com/wiki/Andesine Andesine represents change, harmony, adaptation, love, and spirituality. Andesine is a silicate mineral, a member of the plagioclase feldspar solid solution series. The plagioclase feldspars are a continuous solid solution series and as such the accurate identification of individual members requires detailed optical study, chemical analysis or ...