Azurite is a copper carbonate mineral.
Pronunciation: AZ•your•ite (accent on capitalized syllable)
Color: distinctive azure blue
Streak: blue
Luster: vitreous
Diaphaneity: translucent, but may appear opaque in hand specimen
Hardness: 3.5-4
Specific gravity: 3.77
Cleavage/fracture: 1
Other distinguishing properties: Commonly found in association with green malachite or elemental copper; effervesces in dilute hydrochloric acid.
Klein, C., and Hurlbut, C.S., Jr., 1999, Manual of Mineralogy (after James D. Dana) [21st edition, revised]: New York, John Wiley & Sons, 682 p.
Los Angeles County Museum of Natural History, The Photo Atlas of Minerals: nhm.org/pam/
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