Crystallographic studies of lunar plagioclases from samples 14053 14163, 14301, and 14310 Czank, M. ; Girgis, K. ; Harnik, A. B. ; Laves, F. ; Schmid, R. ; Schulz, H. ; Weber, L. Abstract Publication: Lunar and Planetary Science Conference Proceedings Pub Date: 1972 Bibcode: 1972LPSC....3..603C