quenstedtite
/ˈkwɛnstɛˌtʌɪt/Mineralogy
noun
A rare iron sulphate mineral occurring as white or pale to reddish violet, tabular or prismatic crystals.
- Quenstedtite is a hydrated sulphate of ferric iron, Fe2(SO4)3·10H2O. Crystal system: triclinic..
Origin
Late 19th century; earliest use found in American Journal of Science. From German Quenstedtit from the name of Friedrich August von Quenstedt, German mineralogist and palaeontologist + German -it.