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Shattuckite Dioptase and Chrysocolla

The Mineral shattuckite




Shattuckite is an uncommon copper mineral that is highly regarded for its vivid blue color. It is named after the Shattuck Mine in Bisbee, Arizona, where this mineral was first discovered. Shattuckite occasionally forms within Quartz crystals, underneath the top layer. This creates striking blue formations of Quartz, sometimes with sparkling blue druses. Some collector specimens of Shattuckite are polished to fully bring out the color effect, especially when associated with Malachite, with a blue and green color effect.
Chemical Formula Cu5(SiO3)4(OH)2
Composition Basic copper silicate
Color Bright blue, turquoise blue, dark blue. Sometimes banded in concentric formations.
Streak Blue
Hardness 3.5
Crystal System Orthorhombic
Crystal Forms
and Aggregates
Rarely in elongated crystals. Most often radiating, botryoidal, globular, reniform, and stalactitic. Also as rounded balls, acicular, radial, grainy, and compact. May also form globular formation lining the sides of vugs. Shattuckite frequently forms pseudomorph after other minerals, such as Cuprite, Quartz, and Dioptase.
Transparency Translucent
Specific Gravity 4.1
Luster Vitreous to silky
Cleavage 1,2
Fracture Uneven
Tenacity Brittle
In Group Silicates; Inosilicates
Striking Features Vivid blue color and localities.
Environment In the oxidation zone of hyrdrothermal replacement deposits.
Rock Type Sedimentary
Popularity (1-4) 3
Prevalence (1-3) 3
Demand (1-3) 1


Shattuckite AUCTIONS



USES
Shattuckite is an uncommon yet very aesthetic mineral that makes fine collectors specimens. It is also occasionally used as a gemstone and polished into pendants and beads.

NOTEWORTHY LOCALITIES
The finest examples of Shattuckite, in vivid blue formations usually lining vugs, are found in the copper mines of the Kaokoveld District, Kunene Region, Namibia. It also comes from the same region in Namibia at Mesopotamia 504 in Khorixas as botryoidal growths. Radial Shattuckite sprays, sometimes with concentric banding, come from the Katanga (Shaba) Copper Belt, Congo (Zaire). In the U.S., Shattuckite was well-known from the Shattuck Mine, Bisbee, Cochise Co., Arizona, the mine after which this mineral was named. Another important Arizona locality is the New Cornelia Mine, Ajo, Pima Co.

COMMON MINERAL ASSOCIATIONS
Malachite, Quartz, Azurite, Chrysocolla, Calcite, Dioptase, Plancheite

DISTINGUISHING SIMILAR MINERALS
Azurite - Forms in different crystal habits.
Lazurite - Harder, forms in different environments.


shattuckite PHOTOS
 
ADDITIONAL RESOURCES
 
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