Enstatite Magnesium iron silicate

Enstatite

Jarosite on quartz Potassium iron sulfate

Siderite Iron Carbonate

Biotite basic potassium magnesium iron aluminum silicate

Adirondack Mountains Racquet River

Graftonite with Triphylite Iron manganese calcium phosphate

Hectorite Hydrous magnesium iron silicate

Ilvanite with quartz and limonite Calcium iron silicate

Chromite Iron Chromium Oxide

Jarosite on quartz Potassium iron sulfate

Iron in rocks make river red

Triphylite in Pegmatite Lithium Iron Phosphate

Serpentine Magnesium Iron Silicate Hydroxide

Amphibole Nephrite Jade Basic calcium magnesium iron silicate

Bornite w chalcopyrite Copper iron sulfide

Staurolite Iron Aluminum Silicate Hydroxide

Vivianite with Triphylite and Feldspar hydrous Iron Phosphate

Iron II sulfate

iron tip plough

Cummingtonite w Chlorite in schist Magnesium iron silicate

Iron Plume Ogalala

Tennantite Copper Iron Arsenic Sulphide

early iron plow