Identifier: scienceguide1630amer (find matches)
Title: Guide leaflet
Year: 1901 (1900s)
Authors: American Museum of Natural History
Subjects: American Museum of Natural History Natural history
Publisher: New York : The Museum
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: IMLS / LSTA / METRO

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s. The meteoric light wasdazzling even in the full daylight prevailing at the time and the noi-e-.which were due to explosions, were heard throughout a district 200mile- in diameter. This meteor was the Forest City meteorite. The meteorite burst when it was about 11 mile- northeast of ForestCity, Winnebago County, whence it- name, and most of the fragmentswere -(altered over an area about one mile wide and about two miles :*4 AMERICAN MUSEUM GUIDE LEAFLETS Long. More than a thousand fragments of this meteorite have beenfound, most of which weigh from ^ of an ounce to 20 ounces, but a fewweigh several pounds. Each is a perfect little meteorite. The largestof the group, which is exhibited here in the Foyer collection, weighsabout 75 pounds. The black glassy crust over the surface of all themasses shows that the meteorite exploded early enough in its atmos-pheric flight for even the smallest fragments to become superficiallyfused by friction with the air. The fragments show a primary and
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FOREST CITY. Shows crust on large and small pieces a secondary crust, the former formed before and the latter after thebursting of the original mass. Forest City consists essentially of feldspar, enstatite (a member ofthe orthorhombic-pyroxene group of minerals), graphite, troilite andnickel-iron. The iron is present in small particles disseminated throughthe masses and in definite lines suggesting the Widmanstatten figures ofa siderite. HOVEY, THE FOYER METEORITES The approximate mineral composition of Forest City is Nickel-iron 1!).!, Troilite 6.2% Silicates (feldspar, enstatite, etc.). . . .74.1 ,The nickel-iron is an alloy consisting of Iron 92.7 j Nickel <U\ Cobalt 0.7, The specific gravity of the mass is 3.8. Some chromite is present, butnot as much in proportion as is found in the Long Island, Kansas,meteorite. Some of the smaller individuals of this fall may he seen in thegeneral Museum collection on exhibition in the Morgan Hall of miner-alogy (No. 404 of the fourth floor)

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