Stanfieldite: A New Phosphate Mineral from Stony-Iron Meteorites
- 17 November 1967
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 158 (3803) , 910-911
- https://doi.org/10.1126/science.158.3803.910
Abstract
A new mineral, stanfieldite, Ca 4 (Mg,Fe) 5 (PO 4 ) 6 , has been found in the Estherville mesosiderite and several pallasites: Santa Rosalia, Albin, Finmarken, Imilac, Mount Vernon, and Newport. The atom ratio Mg:Fe of this mineral varies from 1.5 in Estherville to a constant ratio of about 15 in the pallasites. X-ray, optical, and chemical data for the mineral resemble those for the only intermediate compound in the system Mg 3 (PO 4 ) 2 -Ca 3 (PO 4 ) 2 .Keywords
This publication has 4 references indexed in Scilit:
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- The pallasite problemGeochimica et Cosmochimica Acta, 1965
- A new phosphate mineral from the Springwater pallasiteGeochimica et Cosmochimica Acta, 1961
- Phase Diagrams of Ca3(PO4)2-Mg3(PO4)2 and Ca3(PO4)2-CaNaPO4 SystemsBulletin of the Chemical Society of Japan, 1958