Img_5227.jpg < 2027 >

Featured during the 2011 Tucson Show mineral exhibits. Understanding Vivianite

The image captures "long pieces" or incomplete crystals from what is considered an unusual locality for this mineral. IMG_5227.JPG

Vivianite is a hydrated iron phosphate mineral that is often prized by collectors for its deep blue to green color. It is known to be light-sensitive; while initially colorless or pale, exposure to light causes a chemical reaction that darkens the crystals over time. The "long piece" mentioned typically refers to the elongated, prismatic habit these crystals can form, though they are often fragile and prone to breaking, resulting in the "incomplete" specimens seen in the La Caridad Mine batch. View topic - Tucson Show 2011 - Minerals Forum Featured during the 2011 Tucson Show mineral exhibits