Quartz with Hematite inclusions on pyrite and galena, Santa Eulalia, Chihuahua, Mexico. Zoned quartz crystals radiate from the matrix with perfect terminations. The tips grade into amethyst/smoky quartz, and have hematite inclusions.
Miniature specimen: about 2.8" x 1.8" x 1.4" (70mm x 45mm x 35mm)