Y's..ARN's History of Meteorites © 1996,2006 Astronomical Research Network Yafa .......................................13°42'40" N, 45°10'12" E Yafa province, Yemen Fell 2000 July 15, 14:45 h GMT Ordinary chondrite (H5) A main mass of ~5 kg and a second mass of ~700 g are known. Many witnesses reported a fireball over a wide area from Ma'raban to Aden (some 95 km to the south-southwest) to Ad Dhala (70 km west-southwest of Ma'raban) and many in the region reported associated sound effects. The larger stone was collected on the day of the fall, probably within 2.3 h of the event. The smaller stone was collected the following day. Classification and analysis (G. C. Wilson, UToron): Macroscopically, the fall is a breccia, with well- developed fusion crust and a pale interior. Olivine, Fa19.4; ortho- pyroxene, En81.3Fs17.3Wo1.4; kamacite, 0.56 wt% Co and 6.78 wt% Ni. Tetrataenite, averaging 50.3 wt% Ni, is an accessory mineral. Shock stage, S2; negligible degree of weathering, consistent with recent fall. See also Wilson and Rucklidge (2001). Specimens: type specimen, 600 g, Yemen; 93 g and polished thin section, GSC; main mass believed to reside with the finders (as of 2001 September 28). Yakushima...................................30'20' N., 130'30' E. Kyushu, Japan Fell 1902, or found Doubtful. Stone. A meteoritic stone of 46.45g in the Hungarian National Mus., Budapest, is said to have come from Yakushima, an island about 40 miles south of Kyushu, and to have fallen or been found in 1902, seems a very doubtful fall. Yalgoo......................................28'23' S., 116'43' E. Western Australia, Australia Found 1937, known before this year Stone. Olivine-hypersthene chondrite, amphoterite (LL). A fragment of 850g was found in 1937 in the store-room of the Western Australian Mus. labelled "portion of a meteorite found near Yalgoo". Yambo.......................................1' N., 22'30' E. Bosefele, Djolu, Zaire Fell 1951, October 20, 2100 hrs Stone. Olivine-brotizite chondrite (H5). At least 11 stones fell at Yambo, near Bosefele, Djolu, Zaire. Yambo no. 2 Zaire Stone. Olivine-hypersthene chondrite (L3). An unequilibratcd olivine-hypersthene chondrite, L3 . Yandama.....................................29'45' S., 141'2' E. Big Plain, Lake Stewart station, New South Wales, Australie. Found 1914, known before this year Stone. Olivine-hypersthene chondrite (L6). A mass of 5.8kg was acquired by the South Austr. Mus. in 1914. Analysis, 20.77 % total iron . Yangchiang..................................21'50' N., 111'50' E. Guangdong, China Fell 1954, April 12, 0400 hrs Stone. Olivine-bronzite chondrite (H5). Analysis,28.38 % total iron, a single 20kg mass . Yanhuitlan..................................17'32' N., 97'21' W. Oaxaca, Mexico Found 1825, known before this year Iron. Octahodrite, fine (0.3mm) (IVA). A mass of about 42lkg was found by Indians at the foot of the hill Deque-Yacunino and was used as an anvil. In 1825 it was seen by A.F. Momey who analysed a fragment. Aanalysis, 7.36 %Ni. The whole mass has been artificafly reheated to 700-800C. Yanzhuang...................................24'34' N., 114'10'E. Wengyan Co., Guangdong, China Fell Octomber 31, 1990 , 09:45 Beijing time Stone Ordinary Chindrite (H6) After a sonic boom was heard three stones were recovered by farmwers between houses of Yanzhuang village and from a forest path. Weights 1.25, o.115 , and 2.15 kg. The meteoite shows thick black veins of molten material. Yardea......................................32'27' S., 135'33' E. Gawler Range, South Australia Found 1875 Iron. Octahedrite, coarse (2.0mm) (IA), A mass of 7.25lb was found 4 miles south of Yardea station, Analysis, 6.92 %Ni, 88.8 ppm.Ga, 361 ppm.Ge, 4.3 ppm.Ir. Yardymly....................................38'56' N., 48'15' E. Near Lenkoran, Azerbaydzhan SSR, USSR, Fell 1959, November 24, 0705 hrs Iron. Octabedrite, coarse (2.2mm) (IA). Five masses were recovered, of 127.0kg, 11.3kg, 5.83kg, 5.7kg, and 0.36kg. Analysis, 6.71 %Ni, 88.2 ppm.Ga, 387 ppm.Ge, 1.6 ppm.Ir. Description, cosmically annealed . Yarle Lakes 003.............................30'16.8' S., 131'21.5' E. Nullabor Plain, South Australia Found 1993 Ordinary Chondrite (L6) A 14 g stone was found by a rabbit hunter. Yarri.......................................29'27' S., 121'13' E. Western Australia Found 1908, before this year Iron. Octahedrite, medium (l.0mm) (IIIA). A mass of about 1.5kg was found. Analysis, 7.77 %Ni, 19.8 ppm Ga, 38.5 ppm.Ge, 4.0 ppm.Ir. Shock-hardcned . Yarroweyah..................................35'59' S., 145'35' E. Moira, Victoria, Australia Found 1903 Iron. Hexahedrite (IIA). A mass of 21 lb (9.6kg) was found about 4.5 miles south of Yarroweyah railway station. Analysis, 5.48 %Ni, 59.3 ppm-Ga, 171 ppm.Ge, 18 ppm. Ir. Yatoor.......................................14'18' N., 79'46' E. Nellore, Andhra Pradesh, India Fell 1852, January 23, 1630 hrs Stone. Olivine-bronzite chondrite (H5). After a single detonation, a stone of about 30lb was seen to fall. Yayjinna....................................32'1'30' S., 126'11' E. Western Australia Found 1965 Stone. Olivine-hypersthene chondrite (L6). One complete stone, 262.5g was found . Ybbsitz.....................................47'57'36" N., 14'53'24" E. Nieder Osterreich, Austria Found 1977, recognized 1980 Stone. Olivine-bronzite chondrite (H4). A single mass of about 15kg was collected as a rock sample in 1977 and recognized as meteoritic in 1980. Yenberrie...................................14'15' S., 132'1' E. Northern Territory, Australia Found 1918 Iron. Octahedrite, coarse (2.1mm) (IA). A mass of 291 lb was found about 20 miles SSE. of Yenberric. Analysis, 6.72 %Ni, 86.7 ppm.Ga, 312 ppm.Ge, 2.9 ppm.Ir . Yilmia......................................31'11'30' S., 121'32' E. Kambaida district, Western Australia Found 1969, recognized 1971 Stone. Enstatite chondrite (E5). In 1969, numerous fragments were found in soil. In 1971 a single large mass with a primary ablation surface, together with fragments totalling 24kg, were found . Yingde......................................24'12' N., 113'24' Guangdong, China Found 1964, possibly found in about 1860 Iron. Octahedrite, fine (0.3mm) (IVA). A mass of about 300kg is in Guangzhou, Guangdong Mus. Analysis, 7.7 %Ni, 1.8 ppm.Ga, 0. 1 15 ppm.Ge, 2.9 ppm.Ir. Yocemento...................................38'54' N., 99'26' W. Ellis County, Kansas, U.S.A. Found 1966 Stone. Olivine-hypersthene chondrite (L4). A 5.92kg stone was found during ploughing . Yongning....................................22'45' N., 108'20' E. Guangxi, China Found 1971 Iron. Octahedrite, coarsest (3mm) (IAB). A mass of 60kg was found. Analysis, 6.4 %Ni, 98 ppm.Ga, 490 ppm.Ge, 3.8 ppm.Ir. Yonozu......................................37'45' N., 139' E. Nishi Kambara, Niigata, Honshu, Japan Fell 1837, July 13, 1600 hrs Stone. Olivine-bronzite chondrite (H4). After detonations, a stone of 30.44kg fell. York........................................40'45' N., 97'30' W. York County, Nebraska, U.S.A. Found 1878 Iron. Octahedrite, medium (1.0mm) (IIIA). A mass of 835g was ploughed up. Analysis, 7.38 %Ni . York........................................40'52' N., 97'36' W. York County, Nebraska, U.S.A. Found 1928, recognized 1936 Stone. Olivine-hypersthene chondrite (L). A mass of 1440 was found . Yorktown....................................41'17' N., 73'49' W. Westchester County, New York, U.S.A. Fell 1869, September Stone. Olivine-hypersthene chondrite (L5). A stone of about 250g was found, long confused with Tomhannock Creek but is a distinct fall. Whereabouts of the main mass not known. Yorktown....................................28'57' N., 97'24'10' W. De Witt County, Texas, U.S.A. Found 1957, or 1958, recognized 1965 Stone. Olivine-bronzite chondrite (H). A mass of 3.5kg was ploughed up . Yoshiki.....................................34'10' N., 131'27' E. Yamaguchi, Honshu, Japan Fell 1928, June 25 Stone. A piece of 0.12g, formerly in Kwasan Observatory, is missing in 1935. Youanmi.....................................28'30' S., 118'50' E. Western Australia, Australia Found 1917 Iron. Octahedrite, medium (1.1mm) (IIIA). A mass of 261lb was found. Analysis, 7.85 %Ni, 21.0 ppm.Ga, 37.7 ppm.Ge, 2.6 ppm. Ir. Youndegin...................................32'6' S., 117'43' E. Avon, South West Division, Western Australia, Found 1884 Iron. Octahedrite, coarse (2.3mm) (IA). In 1884 four pieces, 25.75lb, 24lb, 17.5lb and 6lb, were found 0.75 miles NW. of Penkarring Rock and 70 miles E. of York. In 1891 a mass of 382.5lb, and in 1892 a still larger mass of 2044lb were found. Another mass, 5789lb, was found SW. of Quairading, in the vicinity of Wamensking Well, and is now assigned to this fall. A further mass of about 203lb was found 25 miles SE. of Mount Stirling. A mass of 3.5lb was found in about 1893 60 miles E. of York and Two further masses, 820g and 742g were found. These three were referred to the Mooranoppin fall, which is now considered to be synonymous with Youndegin, except that this material has been heated. Analysised, 6.38 %Ni, 90.8 ppm.Ga, 383 ppm.Ge, 2.0 ppm.Ir . Contains krinovite Ysleta......................................31'39' N., 106'11' W. El Paso County, Texas, U.S.A. Found 1914, before this year Iron. Anomalous (IRANOM). A mass of 140.7kg was found. Structurally and chemically anomalous. Analysis, 7.66 %Ni, 0.143 ppm.Ga, 0.125 ppm.Ge, 7.0 ppm.Ir. A unique iron, with ai. tenite crystals 1-2 cm in diameter indicative of rapid cooling . Yudoma......................................60' N., 140' E. Yakutia, Federated SSR, USSR, Found 1946 Iron. Octahedrite, fine (0.3mm) (IVA). One mass of 7.6kg was found . Analysis, 9.5 %Ni, 2 ppm.Ga, 0.7 ppm.Ir . Yukan.......................................28'43' N., 116'37' E. Jiangxi, China Fell 1931, August 27, 1500 hrs Stone.Olivine-hypersthene chondrite, amphoterite (LL6), veined. A shower of stones fell, at Liweipantsun and Chowyantsun, 19 km from Yukan. At least 10 stones were collected, the largest of 8 catties (4.8kg). Yurtuk......................................47'19' N., 35'22' E. Lubimov, Mikhailov district, Ukraine, USSR, Fell 1936, April 2, 0100 hrs Stone. Achondrite, Ca-rich. Howardite (AHOW). One stone of 509g fell through the roof of a house, while several pieces, one of 51.5g, was picked up outside. Total mass recovered 1472g .