- Quartz, Schorl, Montmorillonite, Cookeite
- Cabinet, 13.1 x 3.9 x 2.9 cm
- Southern Pacific Silica Quarry (Nuevo Quarry), Nuevo, Riverside Co., California, USA
A quartz crystal densely included with a variety of Riverside County minerals - montmorillonite (clay), the whitish stuff, along with cookeite -- and, a cluster of schorl tourmaline crystals, including one long one that extends most of the way up the side of the quartz crystal. There are little needle-like crystals of schorl shooting through the center of the quartz as well.