Not only in this particular cave but also in several similar caves which were found in the same mine and still totally unexplored ... ranging from refrigerated suits to “crystal-friendly” boots, in ...
Discovered in 1999 inside an abandoned mine in Southern Spain, Pulpí Geode is the largest crystal 'cave' of its kind in the world. But what exactly is a geode and how do crystals form inside them?
A number of crystal-filled caves have been discovered since mining operations began in Naica back in 1974. These include the so-called Cave of Swords, which is loaded from floor to ceiling with ...