Iridescent Goethite (Turgite) from Mexico DS1449 epidote Obsidian is a very hard

Obsidian is a very hard and brittle stone

This slab of aragonite from the Profunda Mine has a very soothing minty green color and fibrous banding

Weight: 176

Vibrant stichtite specimens from the Altai Republic

They measure 8" tall

Iridescent Goethite (Turgite) from Mexico DS1449 epidote Obsidian is a very hardIridescent Goethite (Turgite) from Mexico Approx. Dimensions: 5x2. 5x2 inches Approx. Weight: 176 grams Locality: Durango, Mexico Turgite from Durango, Mexico is an attractive iron oxide mineral specimen most often found at the historic Ojuela Mine in Mapim, Durango, Mexico. It isnt a distinct mineral species in its own right but is generally described as an iridescent mixture of hematite (Fe? O?) and goethite (FeOOH) formed by alteration of iron