1. PYRITE By: Michael McIntosh

2. Classification Pyrite (Iron Disulfide) (FeS 2 ) Hardness: 6-6.5 Color: Pale brass-yellow, tarnishes darker and iridescent Cleavage: Very uneven, sometimes conchoidal Luster: Metallic, glistening Streak: Greenish-black, brownish-black Specific Gravity: 4.95-5.10 Other: Paramagnetic: (A form of magnetism where the paramagnetic material is only attracted when in the presence of an externally applied magnetic field)

3. Crystalline Structure Cubic, often intergrown, massive, radiated, granular. When exposed to air and water, the crystals expand. Crystalline structure of pyrite.

4. Uses In early 16 th and 17 th centuries, used as a form of gunpowder, specifically ignition. Heaped into piles, where immense heat and pressure make the stone “leak” sulfuric fluids. Used as a way to create sulfuric acid. A form of jewelry.

5. Locations Most notably Rio Tinto, Spain and Colorado or Arizona, U.S. Pyrite found in Victoria Mine, Spain Found in Spruce Peak, King County, WA

6. Gallery Pyrite with high metallic luster. Pyrite “Suns”

7. The End! Thanks for watching! :D Pure tumbled Pyrite.