In what has proved to be the discovery of the largest known crystals on earth, work is underway to document and preserve this historic find. While some minor damage has already occurred in the primary cave and a secondary cavern, called
Found deep in a mine in southern
The crystal cavern was discovered within the same limestone body that hosts the silver-zinc-lead ore bodies exploited by the mine. The cavern was probably dissolved by the same hydrothermal fluids that deposited the metals with the gypsum being crystallized during the waning stages of mineralization. The crystals probably grew relatively quickly to their immense size within a completely liquid-filled cavern.
Selenite, the gypsum crystal, named after the Greek goddess of the moon due to its soft white light, is said to have many metaphysical and healing benefits. Selenite powder has been used cosmetically for thousands of years to enhance one's natural beauty. It is believed that this crystal assists with mental focus, growth, luck, immunity, and soothes the emotions. It is unquestionably magical that the cool white rays of moonlight can originate deep underground in a black chamber that is, at least in my perception, white hot.
The Naica mine was first discovered by early prospectors in 1794 south of
From the discovery until about 1900, the primary interest was silver and gold. Around 1900 large-scale mining began as zinc and lead became more valuable.
the famous
In April 2000, brothers Juan and Pedro Sanchez were drilling a new tunnel when they made a truly spectacular discovery. While Naica miners are accustomed to finding crystals, Juan and Pedro were absolutely amazed by the cavern that they found. The brothers immediately informed the engineer in charge, Roberto Gonzalez. Ing. Gonzalez realized that they had discovered a natural treasure and quickly rerouted the tunnel. During this phase some damage was done as several miners tried to remove pieces of the mega-crystals, so the mining company soon installed an iron door to protect the find. Later, one of the workers, with the intention of stealing crystals, managed to get in through a narrow hole. He tried to take some plastic bags filled with fresh air inside, but the strategy didn't work. He lost consciousness and later was found thoroughly baked.
When inside the great cathedral of crystals, the pressure of intense heat makes my feelings run up and down the emotional scale from shear religious awe to outright panic.
When I talk to professional geologists about crystals they tell me that these natural forms are incredibly complex, yet so simple. They have a magical or metaphysical personality independent of their chemical structures. These geologists have explained to me that there is a magma chamber two to three miles below the mountain and that heat from this compressed lava travels through the faults up into the area of the mine. Super heated fluids carry the minerals the miners are seeking as well as form the crystals. The mine is ventilated; otherwise, it could not be worked.
When describing the crystal formation the geologists' eyes light up with a special emotional fascination. They tell how the fluids travel along the Naica fault, enter voids in the bedrock, and then form entirely natural structures that are not easily explained by science.
Thanks goes to. Roberto Gonzales and Ing. Roberto Villasuso, of the Pe¤oles Mining Company and Sonia Estrada and Carlos Lazcano for contributions to this text and photographs.