Figure 3. Some very large crystals in pegmatite. The white in the top half of the image is feldspar. Note the particularly large, roughly rectangular feldspar crystal just above the lens cap. The gray mineral under the lens cap and to the left is quartz. The dark clusters surrounded by quartz are masses of white mica.

---

Last updated on January 6, 2012

Maine.gov | Department Home | Bureau Home | Site Policies