Stunningly colorful, etched gem Tourmaline from the Pederniera Mine. First, the form is unusual with an etched body and a wider termination with amazing geometric growth forms on the surface. Secondly, the color is superb grading up from green, to bright blue, to red, then back to blue/green at the termination. Weighs 60.57 grams. Ex. Tim Sherburn collection.