general/iron-ii-minerals
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Chamosite
Iron-rich end member of the chlorite group
Hedenbergite
Iron-rich pyroxene mineral
Hapkeite
Silicide mineral
Astrophyllite
Hydrous potassium iron titanium silicate mineral
Ilmenite
Titanium-iron(II) oxide mineral
Columbite
Mineral group
Bronzite
Pyroxene mineral variety
Vauxite
Phosphate mineral
Vivianite
Fe(II) phosphate mineral
Aheylite
Phosphate mineral
Siderite
Mineral composed of iron(II) carbonate
Sekaninaite
Mg, Fe, Al cyclosilicate mineral