Glass with embedded metal and sulfides
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moved [[Glass with Embedded Metal and Sulfides]] to [[Glass with embedded metal and sulfides]]: Fix capitalization
'''Glass with Embedded Metal and Sulfides''' (GEMS) are tiny spheroids in [[cosmic dust]] particles with bulk compositions that are approximately chondritic. They form the building blocks of anhydrous [[cosmic dust |interplanetary dust particles]] (IDPs) in general, and ''cometary'' [[cosmic dust|IDP]]s, in particular. Their compositions, [[mineralogy]] and [[petrography]] appear to have been shaped by exposure to ionizing radiation. Since the exposure occurred prior to the [[accretion]] of cometary IDPs, and therefore comets themselves, GEMS are likely either [[solar nebula]] or presolar interstellar grains. The properties of GEMS (size, shape, mineralogy) bear a strong resemblance to those of interstellar [[silicate]] grains as inferred from astronomical observations (Bradley and Ireland, 1996).
==References==
{{cite conference | author=Bradley, John and Ireland, Trevor, I,
| title=The Search for Interstellar
Components in Interplanetary Dust Particles | booktitle=Physics, Chemistry, and
Dynamics of Interplanetary Dust, ASP Conference Series, Vol 104
| year=1996| pages=275-282 }}
[[Category:Astronomical objects]]
[[Category:Planetary science]]
[[Category:Solar System]]
[[Category:Meteoroids]]
[[Category:Glass types]]
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