Carbonate of iron, an important ore of iron occuring generally in cleavable masses, but also in rhombohedral crystals. It is of a light yellowish brown color. Called also sparry iron, spathic iron.

A meteorite consisting solely of metallic iron.

Formerly, magnetic iron ore, or loadstone.

An orangish to black or brown mineral, FeCO3.

An iron meteorite.

iron ore in the form of ferrous carbonate

a meteorite consisting principally of nickel and iron

a carbonate mineral with the chemical formula of FeCO3

a meteorite composed primarily of iron.

Also called ironstone, that is a concretion of iron carbonate. Common in the Mazon Creek fossil beds.

Iron carbonate, which when pure, contains 48.2% iron; must be roasted to drive off carbon dioxide before it can be used in a blast furnace. (Roasted product is called sinter.)

Siderite is also the name of a type of iron meteorite. ----