Iron
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Iron is a chemical element; it has symbol Fe and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element
A polished and chemically etched piece of an iron meteorite, believed to be similar in composition to the Earth's metallic core, showing individual crystals of the iron-nickel alloy (Widmanstatten pattern)
Ochre path in Roussillon
Banded iron formation in McKinley Park, Minnesota
Alloy
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An alloy is a mixture of chemical elements of which in most cases at least one is a metallic element, although it is also sometimes used for mixtures of elements; herein only metallic alloys are descr
From left to right: three alloys (beryllium copper, Inconel, steel) and three pure metals (titanium, aluminium, magnesium)
Liquid bronze, being poured into molds during casting
A brass lamp
A gate valve, made from Inconel