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7 - Mineralogy of Major Physical Components of Chondrites

Published online by Cambridge University Press:  11 August 2021

Alan Rubin
Affiliation:
University of California, Los Angeles
Chi Ma
Affiliation:
Caltech
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Summary

Chondrules are among the most abundant components of chondrites, constituting, for example, 55 vol% of CR carbonaceous chondrites and 65–75 vol% of type-3 OC (Table 7.1). Their average apparent diameters range from ~150 µm in CO3 chondrites to ~900 µm in CV3 chondrites; the overall range in diameter is 0.25 µm to ~5 cm. The most common chondrules in all chondrite groups are ferromagnesian objects, rich in olivine and/or low-Ca pyroxene. There are five common textural types of ferromagnesian chondrules.

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Meteorite Mineralogy , pp. 109 - 152
Publisher: Cambridge University Press
Print publication year: 2021

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