Quartz coated with Iridescent Goethite from Peru DS1827 mammoth tooth active primarily from the late

active primarily from the late 1800s through the mid-20th century during the height of Italy’s sulfur mining industry

making these specimens especially appealing to collectors who value unusual optical properties and classic European localities

This prasem (prase quartz) specimen from the Vtoroy Sovetskiy Mine features quartz crystals colored a distinctive green by fine inclusions of chlorite or actinolite

This gwindel from Mt

This lovely little point from Tessin

Quartz coated with Iridescent Goethite from Peru DS1827 mammoth tooth active primarily from the lateQuartz coated with Iridescent Goethite from Peru Approx. Dimensions: 2. 5x1. 5x1. 5 inches Approx. Weight: 105 grams Locality: Cascas, Gran Chimu, La Libertad, Peru A stunning display piece from the famed mineral locality of Cascas in Gran Chim, La Libertad, Peru, this specimen features lustrous, transparent to milky quartz crystals richly coated with iridescent goethite. The goethites surface shimmers with vibrant metallic huespurples, golds, greens,