Gemmy to translucent, this glowing crystal of Scheelite is from the mountains of Sonora (no specific locale was attributed, but it is classic for the region). This fine example of Mexican Scheelite presents well, with the contacting on the crystal facing down. The luster on the greenish-yellow crystal is very good, and with proper lighting you can see regions of the gemmy interior glow. Bright blue-white fluorescence. Old material, VERY rarely seen on the market!