The Mystery of the Giant Crystals
![[Inside the Naica cave]](https://www.iycr2014.org/__data/assets/image/0006/102849/Poster-del-Misterio-en-ingles.jpg)
The film El Misterio de los Cristales Gigantes (The Mystery of the Giant Crystals) has been made freely available by Madrid Scientific Films and Triana Sci & Tech with the support of the International Union of Crystallography as an educational contribution to the International Year of Crystallography 2014. Written and presented by Juan Manuel García Ruiz and directed by Javier Trueba, the film tells the story of the scientific investigation into the nature and properties of the giant gypsum crystals found in a silver mine in Mexico in 2000.
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Click on the images below to view the film in high definition in English, Spanish, Italian or French.
![[Inside the Naica caves]](https://www.iycr2014.org/__data/assets/image/0003/102846/giant_crystals.jpg)
The Mystery of the Giant Crystals
The Cave of the Crystals (Cueva de los Cristales) in the Naica Mine, Chihuahua, Mexico, houses some of the largest natural crystals ever found. They are selenite, a form of the mineral gypsum (CaSO4.2H2O). Juan Manuel Garcíia Ruiz and his colleagues investigate the conditions under which these huge crystals have grown over the course of thousands of years. The temperatures in the subterranean caverns are over 50°C, and the caves are filled with water containing a variety of minerals leached from the surrounding rocks.
Duration: 50m 53s
© 2014 Trianatech.com - All rights reserved
![[Inside the Naica caves]](https://www.iycr2014.org/__data/assets/image/0020/102881/giant_crystals2.jpg)
El Misterio de los Cristales Gigantes
La Cueva de los Cristales en la mina de Naica, Chihuahua, México, alberga algunos de los más grandes cristales naturales que se han encontrado. Son selenito, una forma del yeso mineral (CaSO4.2H2O). Juan Manuel García Ruiz y sus colegas investigan las condiciones en que estos enormes cristales han crecido a lo largo de miles de años. Las temperaturas en las cavernas subterráneas son más de 50° C, y las cuevas están llenas de agua que contiene una variedad de minerales lixiviados de las rocas circundantes.
Duration: 50m 54s
© 2014 Trianatech.com - All rights reserved
![[Inside the Naica caves]](https://www.iycr2014.org/__data/assets/image/0003/102882/giant_crystals3.jpg)
Il Mistero dei Cristalli Giganti
La Grotta dei Cristalli (Cueva de los Cristales) nella miniera di Naica, Chihuahua, Messico, ospita alcuni dei più grandi cristalli naturali mai trovati. Si tratta di cristalli di selenite, una particolare forma di gesso (CaSO4.2H2O). Juan Manuel García Ruiz e i suoi colleghi indagano sulle condizioni in cui questi enormi cristalli sono cresciuti nel corso di migliaia di anni. La temperatura nelle caverne sotterranee è oltre 50° C, e le grotte sono riempite con acqua contenente una varietà di minerali lisciviati dalle rocce circostanti.
Duration: 50m 58s
© 2014 Trianatech.com - All rights reserved
![[Inside the Naica caves]](https://www.iycr2014.org/__data/assets/image/0004/102883/giant_crystals4.jpg)
Le Mystère des Cristaux Géants
La Grotte des Cristaux (Cueva de los Cristales) dans la mine de Naica, Chihuahua, Mexique, abrite quelques-uns des plus grands cristaux naturels jamais trouvés. Ils sont sélénite, une forme de gypse minéral (CaSO4.2H2O). Juan Manuel García Ruiz et ses collègues enquêtent sur les conditions dans lesquelles ces énormes cristaux ont grandi au cours de milliers d'années. Les températures dans les cavernes souterraines sont plus de 50° C, et les grottes sont remplis avec de l'eau contenant une variété de minéraux lessivés des roches environnantes.
Duration: 50m 58s
© 2014 Trianatech.com - All rights reserved