Azurite

Object/Artifact

-

Crater Rock Museum

Name/Title

Azurite

Entry/Object ID

78.62.106

Description

Chemical Composition: Al(OH)3 Crystal System: Hexagonal System Description: Common Name: Azurite Chemistry: Cu3(CO3)2(OH)2 Group: Carbonates Location: Mexico Description: Small specimen with very small blue crystals scattered over a base of ochre colored iron, chert and quartz. Physical Charateristics: •Color is azure, deep blue or pale blue if found in small crystals or crusts. • Luster is vitreous to dull depending on habit. • Transparency: Transparent if in thin crystals, otherwise translucent to opaque. • Crystal System is monoclinic; 2/m. • Crystal Habits crystals are irregular blades with wedge shaped terminations. Also, aggregate crusts and radiating, botryoidal, nodular and earthy masses. • Cleavage is good in one direction and fair in another. • Fracture is conchoidal and brittle. • Hardness is 3.5-4. • Specific Gravity is 3.7+ (heavier than average). • Streak is blue. • Associated Minerals are numerous and include malachite limonite, calcite, cerussite, quartz, chalcopyrite, native copper, cuprite, chrysocolla, aurichalcite, shattuckite, liroconite, connellite and other oxidized copper minerals. • Notable Occurrences include numerous localities worldwide, but special localities produce some outstanding specimens especially from Lasal, Utah; Bisbee, Arizona and New Mexico, USA; Mexico; Tsumeb, Nambia; Shaba, Congo; Toussit, Morocco; Australia and in many locations in Europe. • Best Field Indicators are color, softness, crystal habits and associations. - See more at: http://www.galleries.com/Azurite#sthash.vq12OFpw.dpuf Hardness: 7 Quartz Rock Type: Sedimentary

Collection

Delmar Smith Mineral Collection

Acquisition

Accession

78.62

Source or Donor

Delmar Smith Mineral Collection

Acquisition Method

Donation

Dimensions

Width

2-3/16 in

Depth

1-1/2 in

Length

1-3/4 in

Location

Location

Shelf

CS-I-3

Room

Curation Storage

Building

Crater Rock Museum

Date

January 31, 2024

Location

Cabinet

G-1 rear

Wall

North

Building

Storage (old gift shop upstairs)

Category

Permanent