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Kristal grotten in Naica, Mexico. Hier bewonder je de grootste kristallen die ooit gevonden zijn. Sommige zijn wel elf meter lang en wegen meer dan 55 ton, waanzinnig om deze een keer te bezoeken.


Initially published nearly thirty years ago, Mary Stewart's The Crystal Cave has been spellbinding readers and converting them into serious Arthurian buffs ever since. Description from I searched for this on


Cueva de los Cristales - The cave of Crystals.


Cave of Crystals, Chihuahua, Mexico Nearly 1,000 feet beneath Mexico's Naica silver mine, in the Cave of Crystals, are 36-foot obelisks of solid crystal gypsums - the largest on Earth. For roughly half a million years, the crystals formed. Nearby magma deposits heat the cavern to temperatures of up to 112 degrees Fahrenheit and the entire space was flooded with mineral-rich waters up until recently. The chamber was discovered in 2000, after mining operations pumped it dry.

van 99TravelTips

11 Most Beautiful Caves To Visit Before You Die!

The most unbelievable ice cave formation. As natural light coming in & reflecting off the water, making the ice look as its baby blue. _________________________ Ice cave . Iceland 2013 @Marla Landreth Landreth Wright Persson


Naica, la cueva de los cristales en Chihuahua, México. Poblada de espectaculares y enormes cristales de selenita o “piedra de la luna”, nos muestra su gran belleza, en un ambiente donde la apariencia de hielo contrasta-en la profundidad- con altas temperaturas.


The Mohs scale of mineral hardness. It was created in 1812 by the German geologist and mineralogist Friedrich Mohs and is one of several definitions of hardness in materials science. The method of comparing hardness by seeing which minerals can scratch others, however, is of great antiquity, having first been mentioned by Theophrastus in his treatise On Stones, c. 300 BC, followed by Pliny the Elder in his Naturalis Historia, c. 77 AD.


Amazing Cave of the Crystals in Mexico. Dialogue is in Spanish, but the photography is spectacular.