Almandine-Pyrope Garnets, which glow deep red when backlit, with tiny dashes of Dravite Tourmaline, in a thin plate of Graphite and Mica. A source for Garnet for Tiffany in the 1890s this small quarry produces some of the most aesthetically amazing mineral specimens we have ever seen. True fire. From a unique geological anomaly, collected and prepared with great effort. Sure to be a highlight in any collection! Red Embers Mine, Erving, Franklin Co., Massachusetts, USA. 5" x 3.25" x .5", 5.6 oz