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Shattuckite
Current inventory:  0 gems
 

Chemistry:  Cu₅Si₄O₁₂(OH)₂  [Copper Silicate Hydroxide]

Discovered in 1915;   IMA status: Valid (pre-IMA; Grandfathered).
Shattuckite is named after its discovery locality, the Shattuck Mine, Bisbee, Arizona, USA.

Classification

Mineral Classification:

Silicates

Strunz 8th Ed. ID:

8/F.04-10

8 : Silicates
F : Inosilicates (chain and band) double chains [Si2O6]4-
04 : Shattuckite series

Crystal Data

Crystallography:

Orthorhombic - Dipyramidal

Crystal Habit:

Rarely as well-formed prismatic crystals elongated, to 2 mm. Typically forms aggregates of spherulitic masses composed of acicular crystals.

Physical Properties

Cleavage:

[010] Perfect, [100] Perfect

Fracture:

Granular

Tenacity:

Brittle

Moh's Hardness:

3.5

Density:

3.80 - 4.11 (g/cm³)

Radioactivity:

Not Radioactive

Optical Properties

Color:

Blue, Dark Blue, Green

Transparency:

Semitransparent to Translucent

Luster:

Vitreous, Silky

Refractive Index:

1.753 - 1.815  Biaxial ( + )

Birefringence:

0.062

Dispersion:

Distinct to Strong

Pleochroism:

X = very pale blue; Y = pale blue; Z = deep blue

Occurances

Geological Setting:

A secondary mineral in oxidized copper deposits.

Type Locality:

Shattuck Mine, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA

Year Discovered:

1915

View mineral photos:

Shattuckite Mineral Photos and Locations

More Information

Mindat.org
Webmineral.com

Shattuckite is a rare and beautiful gem originally found at the Shattuck Mine, Bisbee, Arizona, USA. It is rarely found as crystals and usually found as fibrous or spherulitic masses suitable only for cabochons. Cabochons include beautiful shades of blues and greens typical of minerals associated with oxidized copper deposits. Sources include other mines close to the Shattuck Mine in Arizona, USA; Nevada, USA; New Mexico, USA; Sonora, Mexico; Tsumeb, Namibia; Katanga Province, Congo (Shaba Province, Zaire); and Andros Island, Greece.
 

  
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