Sillimanite,kyaniteandandalusiteareadvantageousnaturalrefractoryrawmaterialsforaluminosilicaterefactoriestoattainimprovedkeyproperties.Thispaperarepidedintopartstointroducetheirresourceandtechnicalcharacteristicinthefirstpart,andtheirapplicationsinrefractoriesinthesecondaprttobesucceeded.Inthispart,basedonauthors'knowledgeandsources,informationontheirreserve,distribution,compositionandcharacteristicisprovided,tobringittolightthatChinaisrichinthereserveofthem,inparticularandalusite.Thesillimanitegroupmineralsarecharacterizedbytheirphasetransformationtoformprimarymulliteandsecondarymullitewhenaddedinhighaluminasystem,accompaniedbyvolumeexpansion,whichcanbetakenusetoimprovecreepresistancesandthermalshockresistanceoftherelatedrefractories.