Naica

Mexico · Chihuahua
Gypsum from Naica, Mexico
Photo: Alexander Van Driessche · CC BY 3.0 via Wikimedia Commons

Naica, in Chihuahua, Mexico, is world-famous for its giant selenite (gypsum) crystals — some of the largest natural crystals ever discovered.

About Naicaextended article

What it is known for

The Naica lead-zinc-silver mine's hydrothermal caves, notably the Cave of Crystals, grew translucent selenite beams metres in length; the mine also yielded fine anhydrite and sulfides.

What collectors look for

Selenite from Naica — water-clear blades and groups — is the prize; museum-grade material is now scarce since the caves flooded after mining ceased.

Frequently asked questions

Where is Naica?

Naica is a mineral locality in Chihuahua, Mexico.

What minerals are found at Naica?

Minerals from Naica include Selenite, Gypsum, Anhydrite.

What is Naica known for?

Naica, in Chihuahua, Mexico, is world-famous for its giant selenite (gypsum) crystals — some of the largest natural crystals ever discovered.

References & databases

Mindat.org is the world’s largest open mineralogy database.