GEO 141
Pyrite
Class: Mineral
Location: Spain
So, by popular demand I am posting up one of the brand new awesome minerals! For starters, yes this is really how it looks. It's known as a pyrite cube and Spain is famous for having these great crystal structures where the pyrite mineral forms large cubes like this one. Pyrite is more commonly called Fool's Gold due to it's gold coloring. While they usually don't come in these pristine cube shapes, most pyrite specimens have a distinct cubic pattern if you look really closely. Sometimes you will find very cool Pyrite disks which look like gold sand-dollars, unfortunately the Sholesonian does not have one in the collection, yet.
Pyrite is about a 6 on Moh's Scale of Hardness, has a fairly high specific gravity (think weight/density), and is a sulfide mineral. The chemical composition of pyrite is FeS2, or just iron sulfide. It's name comes from the Greek, of fire, because it would be used to make sparks when struck against steel. You will often find fossils, even here in Central New York, where you get pyritization, pyrite crystals form and replace some of the fossil material creating a spectacular display of a golden fossil. There are a few other pyrite-similar minerals: Arsenopyrite and Chalcopyrite, both of which will eventually be posted up here later on.
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