The occurrence of diamond in meteorites is described below.
The meteorites which appear annually on or about the 10th of August are popularly known as "the tears of St Lawrence."
The chief occurrences of metallic iron are as minute spiculae disseminated through basaltic rocks, as at Giant's Causeway and in the Auvergne, and, more particularly, in meteorites (q.v.).
Liversidge, The Minerals of New South Wales (1888), and to him is due a valuable chemical study of the meteorites and gold nuggets.
It occurs in the uncombined condition and alloyed with iron in meteorites; as sulphide in millerite and nickel blende, as arsenide in niccolite and cloanthite, and frequently in combination with arsenic and antimony in the form of complex sulphides.
Richter appears to have been the first to propound the idea that life came to this planet as cosmic dust or in meteorites thrown off from stars and planets.
Precht, Ber., 1886, 19, p. 2326), in some meteorites, in certain stars and nebulae, and also in the envelopes of the sun.
chondrite meteorites, which are primitive and largely unaltered.
The impact of millions to billions of carbonaceous meteorites in the early solar system may have replenished the water supply on the terrestrial planets.
Instead, Ida could well have a composition like that of ordinary chondrite meteorites, which are primitive and largely unaltered.
silicon carbide grains from meteorites (Anders and Zinner 1993) indicate characteristics of slow neutron capture reminiscent of AGB stars.
Soon afterwards he constructed a machine from which the liquefied gas could be drawn off through a valve for use as a cooling agent, and he showed its employment for this purpose'in connexion with some researches on meteorites; about the same time he also obtained oxygen in the solid state.
Of great scientific interest in this connexion is the discovery of small diamonds in certain meteorites, both stones and irons; for example, in the stone which fell at Novo-Urei in Penza, Russia, in 1886, in a stone found at Carcote in Chile, and in the iron found at Canon Diablo in Arizona.
This iron has very often beautiful Widmannstatten figures like those of iron meteorites, but it is obviously of telluric origin.'
The extraterrestrial bodies which happen to find a resting-place on the earth are studied under the name of meteorites (q.v.).
Ores of Iron.-Even though the earth seems to be a huge iron meteor with but a thin covering of rocks, the exasperating proneness of iron to oxidize explains readily why this metal is only rarely found native, except in the form of meteorites.
- Native iron was found by Nordenskiold at Ovifak, on Disco Island, in 1870, and brought to Sweden(1871)as meteorites.
The meteoric occurrence has even suggested the fanciful notion that all diamonds were originally derived from meteorites.
carbonaceous meteorites in the early solar system may have replenished the water supply on the terrestrial planets.
Some of the meteorites that land on the Earth, called carbonaceous chondrites, are made of this material.
Find out more meteors and meteorites (fact file) I think I saw a meteor in the sky last night.
He is a reknowned world expert in extraterrestrial sample analysis and is a leading member of European scientists studying meteorites.
primitive meteorites contain minute amounts of pristine interstellar material, in particular SiC (Pillinger et al.
most meteorites are thought to come from asteroids, small rocky bodies orbiting the Sun.
Perhaps the most important meteors are those which, after their bright careers and loud detonations, descend upon the earth's surface and can be submitted to close inspection and analysis (see Meteorites).
Finally, then, both experiment and the natural occurrence in rocks and meteorites suggest that diamond may crystallize not only from iron but also from a basic silicate magma, possibly from various rocks consisting of basic silicates.
Isotopic analysis of silicon carbide grains from meteorites (Anders and Zinner 1993) indicate characteristics of slow neutron capture reminiscent of AGB stars.
Guerlain Meteorites Powder for the Face: It may not look like the traditional, finely milled loose powder that most people are familiar with, but its function is at least partially the same.
Moissanite is a rare mineral with a hexagonal crystal structure that occurs in iron-nickel meteorites and may also be called silicon carbide or carborundum in reference to its chemistry.
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