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Orthopyroxene and orthopyroxene-bearing rock fragments rich in K, REE, and P in Apollo 14 soil sample 14163.Orthopyroxene of various compositions are reported in the less than 1 mm fines in lunar soil sample 14163. The mineral occurs as individual grains and as a major and minor constituent in lithic fragments. K is not positively correlated with REE and P in the orthopyroxene-containing igneous rock fragments studied. Although an X-ray powder pattern of the rare earth element containing calcium phosphate is that of whitlockite, it is tentatively concluded that the weak pattern observed results from an intimate admixture of a major amount of an amorphous phosphate of unknown composition with a lesser amount of crystalline whitlockite.
Document ID
19720026400
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Fuchs, L. H.
(Argonne National Laboratory Argonne, Ill., United States)
Date Acquired
August 6, 2013
Publication Date
October 1, 1971
Publication Information
Publication: Earth and Planetary Science Letters
Volume: 12
Subject Category
Space Sciences
Accession Number
72A10066
Funding Number(s)
CONTRACT_GRANT: NASA ORDER T-76356
Distribution Limits
Public
Copyright
Other

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