Iridescent Goethite (Turgite) from Mexico DS1453 geode This polished slab of the

This polished slab of the Seymchan pallasite meteorite contains olivine crystals in an iron-nickel matrix

so it should not be displayed in direct sunlight

and rare sulfosalts

3" Guerrero Amethyst

5" Sandstone Obelisk

Iridescent Goethite (Turgite) from Mexico DS1453 geode This polished slab of theIridescent Goethite (Turgite) from Mexico Approx. Dimensions: 3x2x2 inches Approx. Weight: 100 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