Plancheite and Shattuckite

ID	114
Mineral	Plancheite Shattuckite
Location	Kandesei - Otjozongombe - Kunene - Namibia
Fluorescence	LW-UV: close SW-UV: close
Mindat.org	View Plancheite information at mindat.org View Shattuckite information at mindat.org

ID	3233
Long ID	1:1:3233:5
Formula	`Cu₈(Si₄O₁₁)₂(OH)₄ · H₂O`
IMA Status	0 1
General Appearance	Dark blue concretions with a rounded surface and very tight fibrous structure; light blue spherules composed of randomly oriented needles; asbestiform veinlets in sandstone, to 4 cm in length.
Other Occurrences	Secondary mineral in copper deposits.
Discovery Year	1908
Diapheny	Translucent
Colour	Pale blue to deep blue, pale greenish blue.
Hardness (min)	6.0
Hardness (max)	6.0
About the name	Named by A. Lacroix in 1908 in honor of François Gilbert Planche (4 June 1866, Tarare, Rhône-et-Loire, France - 24 May 1924, Gap, Hautes-Alpes, France), an industrialist and a politician. He built dams and power plants, and founded several rail companies. In Africa, he constructed the Brazzaville line in Mindouli. He was also director of the French Congo Mining Company, which opened copper mines in the area. He supplied the first samples for study.
Crystal System	Orthorhombic
Morphology	Fibrous
Publication Year	1908
key_elements	0
shortcode_ima	Pch

ID	3634
Long ID	1:1:3634:0
Formula	`Cu₅(SiO₃)₄(OH)₂`
IMA Status	0 1
General Appearance	Pseudomorphs after malachite and as small spherulites.
Occurrence	A secondary mineral in an oxidized copper deposit.
Other Occurrences	Oxidation zone in copper deposits
Discovery Year	1915
Diapheny	Translucent
Cleavage	on {010} {100}
Colour	Light to dark blue.
Hardness (min)	3.5
Hardness (max)	3.5
About the name	Named after its discovery locality, the Shattuck Mine, Bisbee, Arizona, USA.
Crystal System	Orthorhombic
Cleavage Type	Perfect
Morphology	Elongated prismatic crystals. Aggregates of spherulitic masses composed of acicular crystals. Forms include {100}, {010}, {110}.
Publication Year	1915
key_elements	0
shortcode_ima	Sha

Price: € 75

Dimensions: Not registered

Weight: 50 g

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