Formula: Cu36(SO4)(OH)62Cl8.6H2O
Hydrated sulphate containing hydroxyl and halogen, connellite-buttgenbachite series, copper mineral
Specific gravity: 3.36
Hardness: 3
Streak: Pale greenish blue
Colour: Azure blue
Solubility: Insoluble in water, soluble in acids and in NH4OH. Easily fusible.
Environments:
Connellite is an uncommon secondary mineral in the
oxidised portions of copper deposits, associated with
cuprite, spangolite,
atacamite, botallackite,
langite,
malachite and azurite
(HOM).
Localities
At the Slag dumps, Sitio do Cobre Mine, Vila Velha de Ródão, Vila Velha de Ródão, Castelo Branco, Portugal,
electric-blue connellite occurs
(Mindat photo).
Connellite from the Sitio do Cobre Mine -
Image
At the Roughton Gill Mines, Cumbria, England, UK, connellite is often found where
copper veins oxidise in saline
environments, and is also sometimes found in the supergene
oxidation zones of base metal orebodies; in these
assemblages it is commonly associated with cuprite
(JRS11.3.12).
At the New Cliffe Hill quarry, Stanon under Barton, Leicestershire, England, UK, connellite has been found
with brochantite and malachite
(RES p196).
Connellite from the New Cliffe Hill Quarry -
Image
At the Gallagher mine dumps, Cochise County, Arizona, USA, connellite is associated with
anglesite, botallackite,
bromian chlorargyrite,
cerussite and
chrysocolla
(R&M90.4.342).
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