?? ???? ????????? ?? ??? ???????? ??? ????????? ?? ???? ?? ???????? ??????? ??????? ????????. ?????? ????? ???????? ?? ???? ???? ????? ??????? ???????? ????? ?? ????? ????????? ?? ??? ???????? ?????? ?????? ????? ?????? ??? ???? ?????.SOP is not really a Obviously developing mineral, and frequently has to be produced by means of chemical techniques