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 oxidized portions of copper deposits, associated with
cuprite, spangolite,
atacamite, botallackite,
langite,
malachite and azurite
(HOM).
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).
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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