Vivianite Amber Insect Colorado was a prominent figure

Colorado was a prominent figure and collector of Colorado minerals

This specimen features excellent

black cyclic twinned crystals which are associated with Quartz on matrix

This is one of the last pieces of this material that I have left so don't pass it by

Vivianite Amber Insect Colorado was a prominent figureHere is a great old locality specimen of Vivianite from the Siglo XX mine in Bolivia. Subscribers to the Mineralogical Record know that an entire issue was dedicated to this unique and historic locality. This small cabinet size piece features a few beautiful, relatively sharp, gemmy, blue green color, prismatic crystals of Vivianite (some are actually doubly terminated!) associated with botryoidal Wavellite which is coated replaced by Limonite. This