TY - JOUR T1 - Multiple-twinned and reverse-zoned pigeonite in Apollo 14 basalt 14310 JO - Mineralogical Magazine PY - 1973/01/01 AU - Johnston R AU - Gibb FGF ED - DO - DOI: 10.1180/minmag.1973.039.302.16 PB - Mineralogical Society VL - 39 IS - 302 SP - 248 EP - 251 Y2 - 2025/01/03 ER -