
1) Iron mineral 2) Magnesium mineral 3) Monoclinic mineral
Found on
https://www.crosswordclues.com/clue/zincobotryogen

Zincobotryogen is a hydrous sulfate mineral with formula (Zn,Mg,Mn)Fe3+(SO4)2(OH)·7H2O. It forms bright orange red monoclinic prismatic crystals that exhibit a vitreous to greasy luster. Its specific gravity is 2.201 and it has a Mohs hardness of 2.5. It is a rare secondary mineral which forms in arid climates by alteration of other zinc minerals...
Found on
http://en.wikipedia.org/wiki/Zincobotryogen
No exact match found.