|Dimensions (mm)||not provided|
|Weight (carats)||not provided|
MINERAL GEM WORLD
AZURITE WITH MALACHITE
This is a pair of natural nodules from Morocco which has been split open to reveal the colourful centre-great specimen.
Weight of pair 70.83 cts app
Size 25 x 16 x 13 mm app
Azurite owes its name to its azure-blue color. It usually occurs with green Malachite, which may form green stains or specks on Azurite crystals or aggregates. The two minerals sometimes occur admixed or banded together, forming what is called "Azure-malachite" in the gem and mineral trades. A rarer Azurite mixture, known as "Bluebird", is Azurite mixed with dark red Cuprite. Azurite, "Azure-malachite", and "Bluebird" all have gem uses.
In some localities, the Azurite undergoes a chemical change and loses some hydroxyl, altering the Azurite to Malachite, retaining the crystal shape of the original Azurite. Sometimes, only part of the Azurite is altered to Malachite, while the other part remains as Azurite. Such specimens are green on one end and blue on the other.
|Starts||22nd Feb 2017 6:02pm PST|
|Ends||25th Feb 2017 6:00pm PST|
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