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237 CTS MOROCCAN AZURITE -MALACHITE SPECIMEN RT 2034

6317
3

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Specimen
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AZURITE/MALACHITE  SPECIMEN

This is a specimen showing the strong blue colours this is mineral is known for.Ideal collectors specimen.



Size  56x 24 x 24  mm

Malachite and Azurite are both simple Copper carbonates. Azurite occurs as a secondary mineral in the oxidized zones of copper deposits. Where as Malachite occurs as an alteration product in the oxidized zones of copper deposits.

They are chemical twins. The only differences is that Azurite holds less water than Malachite. The green patina on weathered copper roofs is a form of Malachite. Both Malachite and Azurite are formed when carbon dioxide and water, weather copper ore or when copper ore weathers the mineral calcite. Azurite is found in shades of deep blue and is much more rare
then Malachite.

Azurite and Malachite are very often found together. Blue bladed azurite crystals blending
with the rich green of malachite is a very pleasing mineral combination. A rarer Azurite
mixture, known as "Bluebird", is Azurite mixed with dark red Cuprite

Azurite is a soft, deep blue copper mineral produced by weathering of copper ore deposits. It is also known as Chessylite after the Chessy-les-Mines near Lyon, France, where striking specimens have been found. The mineral has been known since ancient times. The blue of azurite is exceptionally deep and clear, and for that reason the mineral has tended to be associated since antiquity with the deep blue color of low-humidity desert and winter skies. 

Pigments

Azurite was used as a blue pigmentfor centuries. Depending on the degree of fineness to which it was ground, and its basic content of copper carbonate, it gave a wide range of blues. It has been known as mountain blue or Armenian stone, in addition it was formerly known as Azurro Della Magna (from Italian). When mixed with oil it turns slightly green. When mixed with egg yolk it turns green-grey. It is also known by the names Blue Bice and Blue Verditer. Older examples of azurite pigment may show a more greenish tint due to weathering into malachite. Much azurite was mislabeled lapis lazuli, a term applied to many blue pigments. As chemical analysis of paintings from the Middle Agesimproves, azurite is being recognized as a major source of the blues used by medieval painters. True lapis lazuli was chiefly supplied from Afghanistan during the Middle Ages while azurite was a common mineral in Europe at the time.

 

Collecting

The intense color of azurite makes it popular collector's stone. However, bright light, heat, and open air all tend to reduce the intensity of its color over time. To help preserve the deep blue color of a pristine azurite specimen, collectors should use a cool, dark, sealed storage environment similar to that of its original natural setting.

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gem traders
gem traders
Gem Traders has cemented its position in the Australian market as a premier destination for gemstones, offering a diverse range of precious treasures. In an endeavor to enrich its offerings, Gem Traders seamlessly integrated opals into its collection, complementing its existing array of gems. Among the opals, Gem Traders showcases a splendid selection of Boulder Opals and opal doublets, each exuding its own unique charm and allure. These opulent gems seamlessly blend with Gem Traders' mainstay gemstones, creating a harmonious symphony of colors and textures. In addition to opals, Gem Traders boasts an impressive inventory of other gemstones, including Rubies, Sapphires, Amethyst, Chrysoprase, Garnets, and intricately carved gemstones. Each gemstone is meticulously curated to ensure unparalleled quality and beauty, catering to the discerning tastes of gemstone connoisseurs across Australia and the world. Gem Traders invites enthusiasts to explore its treasure trove of gemstones, where every stone tells a story of natural wonder and timeless elegance. Whether you're drawn to the captivating hues of opals or the radiant sparkle of Rubies and Sapphires, Gem Traders offers a breathtaking selection to satisfy every gemstone aficionado's desires.
Qld , Australia
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17307 de comentarios

  • nmnk
    nmnk
    Positivo

    Received the pearls today and they are exactly as described.This seller responded very quickly and was a pleasure to buy from!Will buy more in future!Thank you.

  • cecilmcopal
    cecilmcopal
    Positivo

    I have no idea what these are for but I saw them in a dream the night before I bought them

  • novarew
    novarew
    Positivo

    Excellent as usual, thank you kindly

  • bones63
    bones63
    Positivo

    Super-fast delivery! Thanks.

  • bones63
    bones63
    Positivo

    A beautiful dress piece. Thank you.

15%
Código promocional TRADERDEAL
Válido hasta
2nd Jan 2025

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Descripción general

Tipo de listado : Standard
ID del Producto : 275792
Empieza : 18th December 2024 10:25 pm PST
* Todos los precios están en USD