Olivine and chromite crystallized initially, low-Ca pigeonite formed and poikilitically enclosed cumulus phases, followed by continuous crystallization of augite and then plagioclase, finally more evolved phases such as whitlockite, ulv? spinel, and ilmenite crystallized.
L-S型陨石相同的岩相学、矿物化学及REE地球化学特征符合单一岩浆储库的渐进分离结晶模式:即橄榄石和铬铁矿发生初始结晶后,低钙辉石形成并嵌晶包裹堆积相,持续的结晶包括普通辉石的形成和随后斜长石的结晶,最后是演化晚期的矿物如白磷钙石、钛铁晶石和钛铁矿的晶出。
参考来源 - 南极GRV 99027火星陨石的地球化学研究·2,447,543篇论文数据,部分数据来源于NoteExpress
N a brownish-black mineral consisting of a ferrous chromic oxide in cubic crystalline form, occurring principally in basic igneous rocks: the only commercial source of chromium and its compounds. Formula: FeCr2O4 铬铁矿
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