Crystal & gem :
Symes, R. F.
Crystal & gem : Discover the fascinating world of crystals and gems- their beauty, uses, structure and variety. - London : Dorling kindersley, 1991. - 64 p. ill. 29 cm.
Includes index.
0863185754
Crystals.
Crystallography.
Precious stones.
548 SYM
Crystal & gem : Discover the fascinating world of crystals and gems- their beauty, uses, structure and variety. - London : Dorling kindersley, 1991. - 64 p. ill. 29 cm.
Includes index.
0863185754
Crystals.
Crystallography.
Precious stones.
548 SYM