1) Iron mineral 2) Phosphate mineral
Found on
https://www.crosswordclues.com/clue/switzerite
Switzerite is a mineral with the chemical formula of (Mn)3(PO4)2·7H2O. The mineral was named after George Switzer, former Curator of Minerals at the US National Museum.The mineral is monoclinic prismatic, meaning that it has one mirror plane, one 2-fold rotation axis which is perpendicular to the mirror plane and a center of symmetry. Switzerite ...
Found on
http://en.wikipedia.org/wiki/Switzerite
No exact match found.
