Gen: Documentar
Stele: Richard Kiley
echipaj: Robert Hanna (Director of Photography), Christopher Fryman (Cinematography), Jill Shinefield (Production Assistant), Robert Dean Hughes (Post Production Assistant), Ann M. Parish (Assistant Editor), David L. Lahaie (Post Production Supervisor)
Țară: United States of America
Limba:
Studio: WQED, National Geographic
Durata de functionare: 58 minute
Calitate: HD
Publicat: Mar 13, 1991
IMDb: 10
Cuvinte cheie:gemstone, national geographic
