What mineral group is azurite in?

What mineral group is azurite in?

Carbonate mineral
Azurite is a soft, deep-blue copper mineral produced by weathering of copper ore deposits….

Category Carbonate mineral
Formula (repeating unit) Cu3(CO3)2(OH)2
IMA symbol Azu
Strunz classification 5.BA.05

What type of crystal is azurite?

prismatic crystal
Azurite is a prismatic crystal. It is made up of copper carbonate hydroxide and is soft blue in color. Azurite is an ancient stone; it takes its color intensity from the copper element and it’s crystals tend to be monoclinic. Azurite means inner strength and balancing emotions.

Is azurite a silicate mineral?

If conditions are right, the mineral azurite might form….

Physical Properties of Azurite
Chemical Classification Carbonate
Diagnostic Properties Deep blue color, effervescence in dilute HCl, high specific gravity, low hardness.
Chemical Composition Copper carbonate. Cu3(CO3)2(OH)2
Crystal System Monoclinic

What rocks contain azurite?

Azurite is associated with malachite and chalcopyrite. Though it is not a major source of copper it is a good indicator for the presence of copper ores. Large crystals have been found in Tsumeb, Nambia, Touissit, Morocco, Chessy, France, and Guang Dong, China.

Is azurite a precious gem?

Azurite is an ancient semi-precious gemstone that reflects the shifting blues of the sky. Most often, azurite displays the rich, deep blue of the sky at dusk, similar to Van Gogh’s Starry Night. Those born under Sagittarius are honored with an azurite zodiac stone!

What is azurite chemical formula?


PubChem CID 9884557
Molecular Formula C2H2Cu3O8
Synonyms Azurite UNII-9AD6E582QL tricopper;dicarbonate;dihydroxide 1319-45-5 9AD6E582QL More…
Molecular Weight 344.67
Component Compounds CID 23978 (Copper) CID 767 (Carbonic acid) CID 962 (Water)

Is azurite used in jewelry?

Azurite Jewelry Azurite is not a mainstream gemstone for use in jewelry. In fact, azurite on its own is rarely used in jewelry, although the mineral combined with malachite is more commonly found.

Why is azurite so expensive?

However, even small azurites are extremely dark, virtually black. Since azurites have such low hardness (3.5-4) and great sensitivity to heat, faceting them is also very challenging. This combination of factors makes faceted azurites very rare.

Can azurite be used as jewelry?

Although azurite is not a mainstream gemstone for use in jewelry, it has been a favorite of gemstone collectors for a long time. For those lucky enough to own azurite jewelry, you’ll know that this is a stone unlike others. Its vivid blue hues are quite distinct and easy to tell apart from other gemstones.

What is the formula for Cuprite?


PubChem CID 24748041
Structure Find Similar Structures
Molecular Formula Cu2H2O
Synonyms Cuprite
Molecular Weight 145.11

What is azurite?

What is Azurite? Azurite is a copper carbonate hydroxide mineral with a chemical composition of Cu 3 (CO 3) 2 (OH) 2. It is best known for its characteristic deep blue to violet-blue color. The blue color, known as “azure,” is like the deep blue evening skies often seen above deserts and winter landscapes.

How rare is azurite Crystal?

Collectors prize deep blue azurite crystals, but faceted gems are extremely rare. However, azurite frequently occurs mixed with green malachite, and this material is commonly used for cabochons and decorative objects.

What is the specific gravity of azurite?

It contains copper, which gives its blue color and a specific gravity of 3.7 to 3.9, which is exceptionally high for a non-metallic mineral. Azurite is a carbonate mineral and produces a slight effervescence with dilute hydrochloric acid, producing a light blue liquid. Azurite produces a light blue streak on unglazed porcelain.

What are azurite nodules in sandstone?

Azurite Nodules in Sandstone: Small azurite nodules about one centimeter in size in a matrix of fine-grained sandstone. From the Nacimiento Mine, New Mexico. Deep blue color, effervescence in dilute HCl, high specific gravity, low hardness. Copper carbonate. Cu 3 (CO 3) 2 (OH) 2 Minor ore of copper, gem material, ornamental stone, pigment.