More to explore:
The Giant Crystal Project : Gypsum Crystals of the Naica Mine, Mexico
Giant crystal cave, awe inspiring.
Giant crystal cave, Mexico; WOW!!
Explorer in a maze of giant gypsum crystals Photo Source : R.D. Fisher
Very Big Crystals in Cave in a Mexico
The giant obelisks are formed from groundwater saturated in calcium sulphate which filtered through the cave system millions of years ago
#Giant #Crystal_Cave In #Mexico en.directrooms.co...
the cave of crystals. naica, mexico.
Crystal Cave - Mexico.
mexico's cave of giant crystals. outstanding. PBS did a special on these crystals. They are huge.
giant amethyst crystal
Glowing Crystals, Quartz Giant by cobalt123, via Flickr
Stibnite - Wuning Mine (Wuling Mine), Qingjiang, Wuning Co., Jiangxi Province, China
Fingal's Cave or Uamh-Binn, "Cave of Melody". Next trip to Scotland, have to see this.
Amazing cave-of-crystals contains crystals of selenite (gypsum) as large as 4 ft. in diameter and 50 ft. long. - Naica Mine in Chihuahua, Mexico
Naica Mine - Chihuahua, Mexico