Why the Smithsonian Has a Fake Crystal Skull, History

The Natural History Museum's quartz cranium highlights the epic silliness of the new Indiana Jones movie

Crystal Skulls Information, Legends-- National Geographic

Crystal Skulls' Murky Tale - WSJ

Indiana Jones and the Heap of Old Junk, The Independent

The Fourth Skull: A Tale of Authenticity and Fraud—The Appendix

Full article: the controversial history of the crystal skulls: a

British, US crystal skulls fake, scientists say - ABC News

Unraveling the Mysteries of the Crystal Skulls

BM SKULL - British Museum

The Smithsonian's Authentic Crystal Skull