Pyrite Sphere Size:3-4" including giant coelacanths

including giant coelacanths

blue lace agate is quite a hard stone and measures high on the Mohr scale

assorted rough rocks

Anatomy: Exploring the Human Body is a visually compelling survey of more than 5

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Pyrite Sphere Size:3-4" including giant coelacanthsPyrite is a brass yellow mineral with a bright metallic luster. It has a chemical composition of iron sulfide and is the most common sulfide mineral. It forms at high and low temperatures and occurs, usually in small quantities, in igneous, metamorphic, and sedimentary rocks worldwide. Pyrite has a nickname that has become famous "Fool's Gold." The mineral's gold color, metallic luster, and high specific gravity often cause it to be mistaken for gold