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Formula: Cu5(SiO3)4(OH)2
Inosilicate (chain silicate)
Crystal System: Orthorhombic
Specific gravity: 4.11 measured, 4.128 calculated
Hardness: 3½
Streak: Pale blue
Colour: Light to dark blue
Common impurities: Fe,Mn,Mg,Ca,H2O
Environments
Metamorphic environments
Hydrothermal environments
Shattuckite is a rare secondary mineral that is formed in
arid conditions by
the oxidation of copper deposits, commonly associated
with chrysocolla, ajoite,
malachite, quartz, and
hematite
HOM.
It also develops in the zone of alteration in massive and disseminated hydrothermal replacement deposits.
(Audubon).
Localities
At the M'sesa Mine, Kambove District, Haut-Katanga, DR Congo, shattuckite
pseudomorphs after cuprite
have been found
(KL p231).
At the Tantara Mine, Shinkolobwe, Kambove District, Haut-Katanga, DR Congo, shattuckite
pseudomorphs after calcite have
been found with dioptase
(KL p230).
At the Mashamba West mine, Kolwezi District, Katanga, DR Congo: Unusual pseudomorphs
of shattuckite after
cuprite have been found
(R&M 84.6.544-540).
At the Sanda mine at Mindouli, Poole Department, DR Congo, shattuckite occurs with
dioptase
(R&M 84-6.544-540 Connoisseur's Choice).
At Munihuaza, near Álamos, Álamos Municipality, Sonora, Mexico, shattuckite occurs in massive fibrous
pods locally containing native gold
(R&M 84-6.544-540).
At the Milpillas Mine, Milpillas, Santa Cruz Municipality, Sonora, Mexico, sparkling blue specimens of
shattuckite have been found with minor green malachite and
dioptase. The sparkle comes from uniform coatings of
quartz, microcrystals over the surfaces of the shattuckite
(MinRec 55.1.83).
At the Omaue mine, Kanini Region, Namibia, shattuckite is occasionally associated
dioptase and
malachite. Cavities are lined with
quartz crystals
thickly included with shattuckite.
The oxide zone paragenesis here includes at least two generations of dioptase, the
first associated with chalcocite,
followed by chrysocolla, plancheite,
shattuckite and, finally,
late-stage dioptase. namibite and
mottramite variety duhamelite occur with shattuckite, and
apachite occurs with late generation
chrysocolla
as a partial oxidation of shattuckite. The apachite is associated with
brochantite in
sandstone, and with malachite in
limestone
(R&M 84-6.544-540.
At Farm Mesopotamia 504, Khorixas District, Kunene region, Namibia, shattuckite occurs associated with
plancheite
(R&M 84-6.544-540).
At Tsumeb, Oshikoto Region, Namibia, shattuckite occurs in the second oxidation zone associated with
plancheite,
malachite and chrysocolla
(R&M 84-6.544-540).
At the Messina mine, Mpulmalanga Province, South Africa, shattuckite occurs as blue inclusions in
quartz crystals
(R&M 84-6.544-540).
At the type locality, the Shattuck mine, Bisbee, Warren District, Cochise County, Arizona, USA, shattuckite occurs as
pseudomorphs
after malachite and associated with chrysocolla variety
bisbeeite, which replaces it
(R&M 84-6.544-540).
At the New Cornelia mine, Ajo District, Pima county, Arizona, USA, voids host acicular tuffs of
shattuckite some partially altered to
chrysocolla variety
bisbeeite. The shattuckite is associated with
quartz,
calcite, conichalcite,
olivenite, ajoite,
chrysocolla,
and plancheite
(R&M 84-6.544-540).
ajoite is intergrown with shattuckite as are
quartz and
hematite
(AM49.1234-1239).
At Artillery Peak, Mohave County, Arizona, USA, shattuckite occurs in oxidised ores with
alamosite and
luddenite
(R&M 84-6.544-540 Connoisseur's Choice).
Moon Anchor mine and the Potter-Cramer property, south of Wickenburg, Maricopa County, Arizona, USA: Shattuckite
has been found in
the oxide zone assemblage, together with wickenburgite and
phoenicochroite.
(R&M 84-6.544-540).
At the Betty Jo claim, 8 miles southeast of Ely, White Pine County, Nevada, USA, shattuckite occurs with
mimetite, pyromorphite and
chrysocolla
(R&M 84-6.544-540).
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