iron plow Newbolds 1797

Epidot w rock Calcium aluminum iron silicate

Cummingtonite w Chlorite in schist Magnesium iron silicate

Adirondack Mountains Racquet River

Staurolite Iron Aluminum Silicate Hydroxide

wrought iron frame

Tennantite Copper Iron Arsenic Sulphide

Iron Plume Ogalala

Wood putter iron

Enstatite Magnesium iron silicate

iron age implements

Boehmite w minor mixture of other aluminum and iron oxides

Jarosite on quartz Potassium iron sulfate

Center for Environmental Excellence shield

Trail of the Iron Horse

Bald Mountain Adirondacks NY

Iron in rocks make river red

Griphite sodium aluminum calcium iron manganese phosphate

Pyrope Iron aluminum silicate garnet group

Triplite Manganese Iron Fluophosphate

Triphylite in Pegmatite Lithium Iron Phosphate

Serpentine Magnesium Iron Silicate Hydroxide

Bixbyite iron manganese oxide

Bornite w chalcopyrite Copper iron sulfide