Other
Scientific paper
Oct 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974lssf.nasa..145i&link_type=abstract
"In its Lunar Soil from the Sea of Fertility (NASA-TT-F-15881) p 145-154 (SEE N75-11814 02-91) Transl. into ENGLISH from the boo
Other
Chemical Composition, Crystal Structure, Granular Materials, Lunar Rocks, Aluminum Silicates, Chromium Oxides, Geomorphology, Glass, Iron Oxides, Lunar Maria, Manganese Oxides, Olivine, Spinel, Titanium Oxides
Scientific paper
Determinations were made of the chemical compositions of selected olivine crystals, spherical particles ranging in size from 170 to 350 micrometer, spinels, and magnetic particles. The olivines contain 30 to 50 mole percent fayalite. The spherical particles of various colors are aluminosilicate glasses, significantly enriched in CaO compared with the mean composition of the regolith. The degree of coloration depends on the FeO content and also the admixtures TiO2, MnO, and Cr2O3. Compositionally, the spinel was interpreted to be chromopicotites. Magnetic particles were shown to be complex intergrowths of nickelous iron and aluminosilicates. The composition of the metallic phase of one particle (in percent) was: Fe - 86, Ni - 13.6, and Co - 0.16 in combination with plagioclase and microinclusions of ilmenite in silicate. Kamacite was determined in another intergrowth of Fe, Ni, and Co.
Il'in N. P.
Loseva L. Y.
Senin V. G.
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