The above image is a cross-section of the lead-zinc-silver ore body within the 3 fault complex and relative location of the Cave Crystals. Drilling to intersect this ore body discovered the massive openings of the Naica Mine and the Cave of Crystals. These huge crystals are selenite (Gypsum).
These enormous crystals are extraordinary and extremely rare, growing underwater under unique conditions. Draining the caves provided researchers a brief and rare opportunity to see these extremely rare crystals.
Maddalena Environmental Inc.