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  1. Corkite is a phosphate mineral in the beudantite subgroup of the alunite group. It is named after County Cork, Ireland, where it was first discovered in 1869.

  2. Corkite is a brown to green phosphate mineral with the formula PbFe3(PO4)(SO4)(OH)6. It is named after County Cork, Ireland, where it was first described in 1869. See photos, crystal structure, properties and occurrences of corkite.

  3. Corkite is a secondary mineral formed by weathering of hydrothermal base-metal deposits. It has a trigonal crystal system, brownish yellow color, and a chemical formula of PbFe+++3 (PO4) (SO4) (OH)6.

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  5. Corkite is a lead iron phosphate sulphate hydroxide that forms in phosphate-dominated secondary mineral assemblages, especially associated with lead-rich orebodies. It has only been discovered in Wales at Frongoch mine, Ceredigion, where it occurs as minute rhombic crystals on goethite-coated quartz.

  6. Corkite is a complex phosphate of iron and lead with frequent groups (SO4) replacing groups (PO4). It is a secondary mineral formed in the supergene oxidation zone of hydrothermal base metal deposits, and has a pale yellow to dark green color.

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  7. Corkite is a rare secondary mineral with the formula PbFe3(SO4)(PO4)(OH)6, belonging to the beudantite group. It is transparent to vitreous, yellowish brown to green, and forms in hydrothermal deposits or by weathering.

  8. Corkite is a phosphate mineral in the beudantite subgroup of the alunite group. Corkite is the phosphate analogue of beudantite and with it, a complete solid solution range exists. Corkite will also form a solid solution with kintoreite.