Hemimorphite is a hydrated zinc silicate mineral, known for its unique crystallography, role in zinc ore deposits, and appeal to mineral collectors. Its distinctive morphology, secondary origin, and...
Galena is a lead sulphide mineral and the principal ore of lead, widely known for its metallic lustre, high density, and distinctive cubic crystal form. Chemically expressed as...
Anglesite is a lead sulphate mineral with the chemical formula PbSO₄, formed mainly as a secondary mineral through the oxidation of lead-bearing sulphide ores, especially galena (PbS). Distinguished...
Pentlandite is an important nickel–iron sulphide mineral, with the chemical formula (Fe,Ni)₉S₈, and serves as the principal ore of nickel worldwide. Distinguished by its metallic lustre and bronze-yellow...
Garnierite is a generic name for a group of green nickel-bearing hydrous silicate minerals that form as secondary minerals in the weathering zones of ultramafic rocks such as...
Cobaltite is a naturally occurring sulfarsenide mineral composed of cobalt, arsenic, and sulfur, with a general chemical formula CoAsS, though iron and nickel often substitute for some cobalt....
Erythrite is a strikingly coloured hydrated cobalt arsenate mineral, scientifically represented by the formula Co₃(AsO₄)₂·8H₂O. Known for its vivid pink to crimson hues and silky lustre, it is...
Linnaeite is a cobalt sulphide mineral of the thiospinel (or spinel‐type sulphide) group, with the ideal chemical formula Co²⁺Co³⁺₂S₄, and is valued both for its cobalt content and...
Cassiterite is a tin oxide mineral and the primary ore of tin, with the chemical formula SnO₂. Recognised for its exceptional hardness, high density, and adamantine lustre, cassiterite...
Stannite is a metallic sulphide mineral containing copper, iron, tin, and sulphur, with the chemical formula Cu₂FeSnS₄. It is a relatively uncommon ore mineral that occurs mainly in...
