<正>StudiesontheaerolitefragmentsfromBaishacrater,HainanIslandprovethattheybelongtocalcium-richachondritewhicharerelictsofcrateringmeteoriteoftheBaishacrater.Theseflat-ballshapedaerolitefragments,sizebeing21cm×18.5cm×8.7cm,werefoundinacreekwithintheBaishacrater.Thishardaeroliteweigh3.75kgwithadensityof3.46g/cm3.Itismantledbya0.1-0.5cmthick,brownshellanditsfreshsectionisdark-grey.Theaeroliteischaracterizedbyporphyritictextureandnospherulitictexturehasbeenfound.Microscopicexamination,X-raydiffractionanalysisandelectronicprobeanalysis
