(NmINERALOGIQ I KRISTALLOFIZIKA @WELIRNYH RAZNOWIDNOSTEJ KREMNEZEMA (B/s - (NbALAKIREW(B, (Nw(B.(Ng(B.s; (NkIEWLENKO(B, (NeWGENIJ qKOWLEWI^s; (NnIKOLXSKAQ(B, (Nl(B.(Nw(B.s ((NmOSKWA (B:s (NnEDRA(B,s, 1979)
(NaWT(B. (NUKAZANY NA OBOROTE TIT(B. (NL(B.s
(NbIBLIOGR(B. 136 (NNAZW(B.s
Keywords: (NmESTOROVDENIQ DRAGOCENNYH(B, (NPOLUDRAGOCENNYH I PODELO^NYH KAMNEJs