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Azurmalachite

Specimen of Azurite on Malachite.
Specimen of Azurite on Malachite.

Azurite, a dark blue copper mineral, and malachite, a rich green copper mineral, are sometimes found in a combination called azurmalachite. Both are secondary minerals found in weathered copper deposits. When they undergo a process known as metasomatism, these two minerals can alter to become each other and when they form in proximity there can be intergrowth. The combination (as shown in our specimen image) exhibits the best of both minerals creating a vibrant, beautiful gemstone. This rich green and blue mineral combination is popular with lapidarists and collectors.

Gemological Information for Azurmalachite

Color:Patterned Blue and Green
Crystal Structure:Rock
Refractive Index:1.655 to 1.909 (Malachite) and 1.730 to 1.836 (Azurite)
Durability:Poor
Hardness:3.5 to 4
Family:
Similar Stones:AzuriteMalachiteChlorastroliteLapis Lazuli
Treatments:Paraffin or Resin Impregnation
Country of Origin:France, Namibia, U.S., Australia, England, Romania, Russia, Zaire

Azurmalachite Care

Ultrasonic Cleaning:Never
Steam Cleaning:Never
Warm Soapy Water:Safe if Done Carefully
Chemical Attack:Attacked by Acids
Light Sensitivity:Stable
Heat Sensitivity:Affected

Sources

  • “Azurmalachite.” GeologyScience.com. https://geologyscience.com/gemstone/azurmalachite/ Accessed 12/17/2024.
  • Gem Reference Guide, Los Angeles: Gemological Institute of America, 1988. Pp. 22-23.
  • Schumann, Walter. Gemstones of the World, New York: Sterling Publishing, Co., 1977. Pp. 29.
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