Occurrence of Whitlockite in Chondritic Meteorites

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Science  10 Aug 1962:
Vol. 137, Issue 3528, pp. 425-426
DOI: 10.1126/science.137.3528.425


The first reported occurrence of the tricalcium phosphate mineral, whitlockite, in several chondrites is described. The identification of this mineral and previously reported chlorapatite were made by x-ray diffraction; the results do not confirm the postulated existence of meteoritic merrillite. Some other remarks pertaining to the existence of merrillite are presented.