Plattnerite

It was first reported in 1845 and named after German mineralogist Karl Friedrich Plattner.

Plattnerite is found in numerous arid locations in North America (US and Mexico), most of Europe, Asia (Iran and Russia), Africa (Namibia) and Southern and Western Australia.

It occurs in weathered hydrothermal base-metal deposits as hay-like bundles of dark prismatic crystals with a length of a few millimeters; the bundles grow on, or sometimes within various minerals,[5] including cerussite, smithsonite, hemimorphite, leadhillite, hydrozincite, rosasite, aurichalcite, murdochite, limonite, pyromorphite, wulfenite, calcite and quartz.

[6] Already then, the mineral was known under its name, given to honor Karl Friedrich Plattner (1800–1858), professor of metallurgy and assaying at the Mining Academy in Freiberg, Saxony, Germany.

[7] Lead dioxide is used in lead acid batteries and electrochemistry, but only in synthetic form – both plattnerite and scrutinyite are too rare and find no practical application.

Crystal structure