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File:Azurite_-_New_Nevada_Lode,_La_Sal,_Utah,_USA.jpg · Wikimedia Commons · See Wikimedia Commons

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azurite

Azurite or Azure spar is a soft, deep-blue copper mineral produced by weathering of copper ore deposits. During the early 19th century, it was also known as chessylite, after the type locality at Chessy near Lyon, France. The mineral, a basic carbonate with the chemical formula Cu3(CO3)2(OH)2, has been known since ancient times, and was mentioned in Pliny the Elder's Natural History under the Greek name (κυανός: "deep blue," root of English cyan) and the Latin name caeruleum. Copper (Cu2+) gives it its deep blue color.

AI overview

Azurite is a soft, deep-blue copper mineral that forms naturally when copper ore deposits weather over time, and its distinctive color comes from copper content. Known since ancient times and valued throughout history, azurite has been an important mineral resource that people have recognized and named across multiple ancient civilizations.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Mineral.boxbgcolor: 0066CC
Mineral.name: Azurite
Mineral.boxtextcolor: fff
Mineral.category: Carbonate mineral
Mineral.image: Azurite - New Nevada Lode, La Sal, Utah, USA.jpg
Mineral.caption: Azurite from New Nevada lode, La Sal, Utah, United States
Mineral.formula: Cu3(CO3)2(OH)2
Mineral.IMAsymbol: Azu
Mineral.molweight: 344.67 g/mol
Mineral.strunz: 5.BA.05
Mineral.system: Monoclinic
Mineral.class: Prismatic (2/m) (same H-M symbol)
Mineral.symmetry: P21/c
Mineral.unit cell: a = 5.01 Å, b = 5.85 Å c = 10.35 Å; β = 92.43°; Z = 2
Mineral.color: Azure-blue, dark to pale blue; pale blue in transmitted light
Mineral.habit: Massive, prismatic, stalactitic, tabular
Mineral.cleavage: Perfect on , fair on , poor on
Mineral.fracture: Conchoidal

via Wikipedia infobox

Wikidata facts

Image: Azurite-Malachite-188417.jpg

Show 8 more facts

Commons category: Azurite
Nickel-Strunz 9th edition (updated 2009): 5.BA.05
Nickel-Strunz '10th ed', review of (9th ed/ 2009 update): 5.BA.05
Mohs' hardness: 3.75
density: 3.75
IMA Mineral Symbol: Azu
chemical formula: Cu₃(CO₃)₂(OH)₂
Strunz 8th edition (series ID, updated): Vb/B.01

Sources (3)

via Wikidata · CC0

~9 min read

Article

14 sections

Contents

Mineralogy
Color
Weathering
Occurrences
Uses
Pigments
Jewelry
Collecting
Prospecting
History
Gallery
See also
References
External links

==Mineralogy== left|thumb|220px|Chemical structure of azurite. Color code: red = O, green = Cu, gray = C, white = H) Azurite has the formula Cu3(CO3)2(OH)2, with the copper(II) cations linked to two different anions, carbonate and hydroxide. It is one of two relatively common basic copper(II) carbonate minerals, the other being bright green malachite. Aurichalcite is a rare basic carbonate of copper and zinc. Simple copper carbonate (CuCO3) is not known to exist in nature, due to the high affinity of the ion for the hydroxide anion .