Genere: Documentario
Stelle: Richard Kiley
equipaggio: Robert Hanna (Director of Photography), Ann M. Parish (Assistant Editor), David L. Lahaie (Post Production Supervisor), Jill Shinefield (Production Assistant), Barry Nye (Editor), Nancy Severinsen (Music Coordinator)
Nazione: United States of America
linguaggio:
Studio: WQED, National Geographic
Durata: 58 minuti
Qualità: HD
Rilasciato: Mar 13, 1991
IMDb: 10
parole:gemstone, national geographic
