Simple oxide, rutile group, paramorph of scrutinyite
Specific gravity: 9.562
Streak: Dark brown
Colour: Jet-black, iron-black, brownish black
Solubility: Soluble in hydrochloric acid with evolution of Cl2, soluble with difficulty in nitric or sulphuric acid with evolution of oxygen (Dana)
Plattnerite occurs in weathered hydrothermal base-metal deposits, oxidised typically in arid climates. Associated
minerals include cerussite, smithsonite,
calcite and quartz
At the Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia, plattnerite occurs with minium and massicot as coatings (Dana).
At the type locality, Leadhills, South Lanarkshire, Scotland, UK, plattnerite occurs with cerussite, leadhillite and pyromorphite (Dana).
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