There are two Coyamito Ranches in the Sierra del Gallego, Rancho Coyamito Sur and Rancho Coyamito Norte. Only Coyamito Norte is well known for one of the most famous Mexican agates, the Coyamito Agate. It is mined out of the dense Rancho El Agate andesite. Early reports of these agates are from the middle of the 1940s. After the easy picking from the surface small mining efforts with pick and pry bar were started, like the famous La Fortuna Claim. They exactly knew where and how deep they had to dig for agates. Later mining at that place with heavy equipment has been unsuccessful.

Banding of these agates is often not as fine as the best agates from Ojo Laguna. The combination of purple and yellow, a vivid red, orange and blue put them on the top of worldwide agates.

More brilliant pictures of this kind of agate are represented on the new release from the AGATE-ARCHIVES : “Laguna-Agates” - an informative and and esthetical pleasure - presented on CD-ROM.

Further informations are given from Brad L. Cross in his book “The Agates of Northern Mexico”, page 44 -46.

Coyamito RHR Hoffmann Rothe 47 mmam
Coyamito RHR Hoffmann Rothe 49mmam
Coyamito RHR Hoffmann Rothe 47mmam
Coyamito RHR Hoffmann Rothe 88mmam
Coyamito RHR Hoffmann Rothe 54mmam
Coyamito Achat RHR Hoffmann Rothe 102mmam
Coyamito Agate RHR Hoffmann Rothe 36 mmam
Coyamito Ps.n.Ar Hoffmann Rothe am
Coyamito RHR Hoffmann Rothe 38 mmam
Coyamito RHR Hoffmann Rothe 39mmam