Iridescent Goethite (Turgite) from Mexico DS1443 smokey quartz with calcite and quartz perched

with calcite and quartz perched atop

All of these masses were originally given names based on cities near where they were found

and limestone with organic matter and minerals such as iron sulfide

Dimensions: 4x3

Iridescent Goethite (Turgite) from Mexico DS1443 smokey quartz with calcite and quartz perchedIridescent Goethite (Turgite) from Mexico Approx. Dimensions: 4x2x1 inches Approx. Weight: 77 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