purpurite


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purpurite

[′pər·pyə‚rīt]
(mineralogy)
(Mn,Fe)PO4 A dark-red or purple mineral composed of ferric-manganic phosphate; it is isomorphous with heterosite.
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A non-metallic black or white finish is standard, with Deep Black, Purpurite, Mahogany, Carrara White and Rhodium Silver metallic paints available as an option.
It is available with black and white exteriors as standard while other optional colours include Jet Black, Purpurite, Mahogany, Carrara White, or Rhodium Silver metallic paints.
Secondary phosphates found in the Stewart pegmatite include hureaulite, sicklerite, purpurite, heterosite, stewartite, and phosphosiderite.
Phosphate minerals include primary lithiophilite, triphylite, and amblygonite, and numerous alteration products including hureaulite, purpurite, and sicklerite.
Along with gem spodumene and tourmaline, Jahns and Wright (1951) list quartz, perthitic microdine, albite, beryl (morganite and aquamarine), bavenite, bertrandite, numerous bismuth-containing minerals including native bismuth, bismuthialte, bismutite, and bismite, and nurnerous phosphates including lithiophilite, triphylite, sickletite, purpurite, heterosite, stewartite, and hureaulite.
These include sicklerite, purpurite, hureaulite, phosphosiderite, strengite, stewartite, eosphorite, robertsite, mitridatite, jahnsite, fairfieldite, hopeite, and pseudomalachite.
Minerals in the pegmatite are: quartz, microcline, muscovite, albite, amblygonite, "apatite," beryl, uraninite, elbaite, members of the tantalite group, secondary uranium minerals, triphylite, triplite, purpurite, rockbridgeite, tavorite, barbosalite, hureaulite, eosphorite, phosphosiderite, carlhintzeite, colquirite, pachnolite, ralstonite and fluellite.
Compositionally it is close to end-member composition in the series with purpurite, containing 33.