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PYRITE #1 Go on to: #1 | #2 | #3 | #4 Pyrite 
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Physical Properties
FeS2
Hardness = 6 - 6.5; Cleavage: none; brittle fracture Crystals: cubes, with parallel striations on faces; massive forms common Color: pale yellow to brass-yellow Streak: greenish black Luster: metallic, shiny, often tarnished |
Description
"Fool's gold." This massive chunk illustrates some of the properties of pyrite. Color is pale brassy, on the right side can be seen corners of the cubic crystal shape; at the very lower right is a small crystal face (partly in shadow) with parallel striations, and in the same area the tarnish typical of pyrite is visible.
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