Dwarves Earth Treasures: Coyomito Agates from Rancho De Coyomito, Chihuahua Province, Mexico

Coyamito Agates
Rancho De Coyamito, Chihuahua State, Mexico

Even they have been known since 1960s, the Coyamito agates have recently been mined. It turns out that the typical colors are red, pink and light blue to purple colors, and any solid agates showing strong banding and strong colors are somewhat sparse. The classic color combos would be purple & yellow combo, and orange & yellow combo with strong shadowing effects. The Coyamito agates are also well known for their excellent pseudomorphs (aragonite crystals replaced by colorful agate) and stalactitic pieces which actually come from a different place along the same rock bed (I forgot the name). It must be pointed out that some similar agates from other nearby locations such as Aparejos, El Suecos and Demasche agates may be mixed with coyamitos or sold under that name (or as "Mexican Agates"). Japanese Bed is one of several recently opened claims where many psuedomorph specimens have been mined.

YOU CAN CLICK ON THE PICTURES FOR LARGER PICTURES

Rough Appearance: Smooth almond shapes with small pits. Skin colors are brown, dark green and light green.
Hollow reddish agates are common, can be confused with rounded Laguna agates.


Typical red to light blue colors	Psuedomorphs (Japanese Bed claim)	Shadowing effect

Blue and purple colors	Psuedomorph	Red & Purple colors

Shadowing effect	Unusual colors	Yellow and lavender colors

Bright yellow and purple colors (Japanese Bed Claim)	At least five different color	Black and red?!?!

Stalactitic structure	Actually popped out of the vise while cutting so it had to be recut again.	Red and blue colors

	Psuedomorphs after calcite/aragonite	Psuedomorphs (Japanese Bed Claim)