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Plate 1 from Histoire naturelle? (1789)Plate 1 Histoire Naturelle ou Mineralogie Complete, from Histoire naturelle: ou, Exposition des morceaux, les mieux choisis pour servir? (1789) by by Swebach Desfontaines
Linarite is a bright azure blue colour with crystal growth to nearly 25mm. It comprises of (lead copper sulphate hydroxide). Specimen from the Natural History Museum, London
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Information leaflet, Dr Williams pink pills for pale peopleInformation leaflet for Dr Williams pink pills for pale people. The patent medicine pills contained iron oxide and magnesium sulphate
Advertisement, Dr Williams pink pills for pale people. Mother weak from childhood. Son a victim of St Vitus Dance. The patent medicine pills contained iron oxide and magnesium sulphate
Sunday stone, a calendar in rockFormed in a Tyneside coal mine in the 1800s, the white mineral barium sulphate, settled out in a water trough and during working shifts was blackened by coal dust
Susannite on Caledonite4mm crystal of susannite (carbonate) in a mass of caledonite (suplhate). Specimen from the Roughton Gill mine, Caldbeck Fells, Cumbria
ThenarditeA specimen of the mineral Thenardite (number 1929, 1859) held in the Natural History Museums Mineral Department
Birthstone Series: Lazurite
Gypsum is comprised of (hydrated calcium sulphate). It forms from the evaporation of highly saline waters producing massive beds
CerussiteAggregates of white crystals on globular crystalline baryte. Cerussite comprises of (lead carbonate). Specimen from Frank Mills mine, Christow, Devon
ConnelliteDeep-blue velvety crust of needles with some red cuprite. Connellite comprises of (hydrated copper sulphate chloride hydroxide). Specimen from Wheal Muttrell, Gwennap, Cornwall
CelestiteA mass of celestite crystals. Celestite is strontium sulphate and is the source of red colours in fireworks
Caledonite comprises of (copper lead carbonate sulphate hydroxide) and is characterized by small, well-formed intricate crystals. This specimen is from the Natural History Museum, London
AnhydriteA specimen of the mineral anhydrite (calcium sulphate) from the Simplon tunnel through the Alps which links Switzerland to Italy
Amethyst, baryte dioptase, rhodochrositeAmethyst, purple crystals from India. Baryte, long yellow prisms from Cumbria. Dioptase, green lustrous crusts from Namibia. Rhodochrosite, pink crystals on quartz
BaryteSpecimen of the mineral Baryte from Wheal Mary Ann Menheriot, Cornwal, England
OpalFire opal in a matrix slab of alunite from Guatemala. Opals are not truely crystalline and are therefore mineraloids. They comprise of (hydrated silica glass)
Desert rose specimen
BrochantiteA specimen of the mineral brochantite (copper sulphate hydroxide) from the Fowey Consols mine, St Blazey, Cornwall. A rippled green mass of minute crystals, with similar (but blue-green) langite
Celestine
Baryte crystalsYellow prisms of the minreal baryte (BaSO4) on hematite (iron oxide) from Dalmellington Mine, Frizington, Cumbria
Lapis lazuli from AfghanistanPolished slab of lapis lazuli containing some brassy-coloured pyrite. Lapis lazuli (sodium calcium aluminum silicate sulphur sulphate) is a rich blue opaque, semi-precious stone
Belt-hook in lapis lazuliCarved chinese belt-hook on a piece of rough lapis lazuli from Badakhstan. Lapis lazuli (sodium calcium aluminum silicate sulphur sulphate) is a rich blue opaque, semi-precious stone