TY - JOUR
T1 - Phosphide from metorites
T2 - Barringerite, a new iron-nickel mineral
AU - Buseck, P R
PY - 1969
Y1 - 1969
N2 - Schreibersite, (Fe,Ni)3P, and a higher phosphide, barringerite, occur in the Ollague pallasite. The composition of the higher phosphide, determined by electron probe microanalysis, is (Fe0.58Ni 0.42Co0.003)1.95P. It is hexagonal, with space group P62m and a=5.87±0.07 angstroms and c=3.44±0.04 angstroms. If we assume a primary origin, the new mineral indicates that troilite and Schreibersite crystallized at high temperatures. The occurrence of a higher phosphide in a pallasite indicates local nonequilibria within a group of meteorites that are remarkable for their overall degree of equilibrium crystallization.
AB - Schreibersite, (Fe,Ni)3P, and a higher phosphide, barringerite, occur in the Ollague pallasite. The composition of the higher phosphide, determined by electron probe microanalysis, is (Fe0.58Ni 0.42Co0.003)1.95P. It is hexagonal, with space group P62m and a=5.87±0.07 angstroms and c=3.44±0.04 angstroms. If we assume a primary origin, the new mineral indicates that troilite and Schreibersite crystallized at high temperatures. The occurrence of a higher phosphide in a pallasite indicates local nonequilibria within a group of meteorites that are remarkable for their overall degree of equilibrium crystallization.
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U2 - 10.1126/science.165.3889.169
DO - 10.1126/science.165.3889.169
M3 - Article
AN - SCOPUS:0001088146
SN - 0036-8075
VL - 165
SP - 169
EP - 171
JO - Science
JF - Science
IS - 3889
ER -