A single stone of 1728g was found by Marvin Killgore; listed, with classification and mineral analysis, S.S.Russell et al., Met. Bull. 86, MAPS, 2002, 37 (Suppl.), p.A157.
Location: Arizona
Temple Bar
Slightly weathered stone which is packed full of chondrules. A CR2 is among the most primitive chondrites formed in the early solar system.
Tucson
Two large masses, one ring-shaped (the Signet or Irwin-Ainsa Iron) of 688kg and the other (the Carleton Iron) of 287kg known for centuries, had been transported to Tucson from the Puerta de los Muchacos, a pass 20-30 miles S of that town and were used as anvils; first mentioned by J.F.Velasco in 1850, M.H.Hey, Cat. Met., 1966, p.491. Bibliography, with analyses, L.Fletcher, Min. Mag., 1890, 9, p.16. Bibliography for the period 1850-1876, P.J.McGough, Pop. Astron., Northfield, Minnesota, 1943, 51, p.511, 564, and 1944, 52, p.243. Detailed history, with bibliography, R.R.Willey, The Tucson Meteorites, Washington D.C., 1986, 56 pp. A unique iron with silicate inclusions, containing brezinaite, (Cr3S4), T.E.Bunch and L.H.Fuchs, Amer. Miner., 1969, 54, p.1509. Analysis, 9.45% Ni, 0.94 ppm Ga, 0.049 ppm Ge, 2.1 ppm Ir, orthopyroxene Fs0.4 in silicate inclusions, J.T.Wasson, GCA, 1970, 34, p.957. The Carleton mass has been heated and forged; different coordinates, weights of masses, V.F.Buchwald, Handbook of Iron Meteorites, Univ. of California, 1975, p.1235. Further chemical analysis, 9.82% Ni, 0.54% Co, M.I.Dyakonova and V.Y.Kharitonova, Meteoritika, 1975, 34, p.65. Microstructure and cooling rate calculation, the meteorite was rapidly cooled, G.T.Miyake and J.I.Goldstein, GCA, 1974, 38, p.1201. Further analysis, E.R.D.Scott, GCA, 1978, 42, p.1243. Relationship to enstatite meteorites; mineralogy and chemical composition of silicate inclusions, C.E.Nehru et al., J. Geophys. Res., 1982, 87, (suppl.), p.A365. Further analysis data of metallic and non-metallic phase, H.W.
Gold Basin
Gold Basin strewn-field was discovered by Jim Kreigh while prospecting for gold in the early 80’s. Since then thousand of specimens have been found in the area. There age on earth more than 12,000 years.
Holbrook
After appearance of a smoky trail in the sky and detonations, a shower of stones fell, estimated to number 14000, of total weight about 481lb, with individuals weighing from 14.5lb to a few grains. Description, W.M.Foote, Am. J. Sci., 1912, 34, p.437, G.P.Merrill, Smithson. Misc. Coll., 1912, 60, (2149). Analysis, 21.56% total Fe, B.Mason and H.B.Wiik, GCA, 1961, 21, p.276. Olivine Fa25, B.Mason, GCA, 1963, 27, p.1011. Structure and composition of plagioclase, W.R.van Schmus and P.H.Ribbe, GCA, 1968, 32, p.1327. XRF analysis, 19.8% total Fe, H.von Michaelis et al., Earth Planet. Sci. Lett., 1969, 5, p.387. Study of metal phase, H.C.Urey and T.Mayeda, GCA, 1959, 17, p.113. A 1.5 kg specimen was recovered from the fall site in 1968, E.K.Gibson,Jr., Meteoritics, 1970, 5, p.57. Metallography and Ni-concentration profiles of taenite in metal grains, G.J.Taylor and D.Heymann, GCA, 1971, 35, p.175. Ni and Ir contents, O.M
Canyon Diablo
Canyon Diablo meteorites come from the most famous impact crater in the world; Meteor Crater, Arizona. These iron meteorites are classified as IA, coarse octahedrite. Many contain inclusions of graphite. When a graphite inclusion pops out of the host meteorite it is called a graphite nodule. Another interesting fact about Canyon Diablo is the occurrence of carbonados or black diamonds formed by impact on earth or in space. These meteorites are typically characterized by classic meteorite features like sharp ridges, holes and bowls.