<p> CLASSIFICATION OF METEORS (3 Divisions, 7 Classes, 30 Sub classes) l. Stony a. Composition like Earth's crust b. Mostly silicates c. Tektites – glassy</p><p>2. Stony Irons a. Nickel, Iron, and Silicate minerals. b. 50-50 percent of Fe, Ni, and silicates</p><p>3. Irons a. Nickel and Iron b. Nearly 100% metal c. Approximately 5%-30% nickel and 70%-90% iron</p><p>4. Meteors named for the nearest Post Office or County a. 1973-1983: 5,000 meteorite fragments were found on Earth b. Antarctica ice fields 1. 1974: 663 found 2. 1979: 3,000 found c. Before 1,960 there was approx. 2,100 known meteorites d. Antarctica desert based on ppt. Only a few mm pp% annually 5. Once special type of meteorite a. Carbonaceous Chrondrites b. Has amino and fatty acids, and Ch20 (carbon and water) c. Sometimes referred to as the "true genesis rock"</p><p>Reference Dr. Marvin- Expert on meteorites</p>