A grey, opaque and naturally pitted (or just weirdly crystallized) microcline crystal. Because of the natural corrosion it is difficult to determine if certain faces are actual (corroded) faces or incomplete (damaged) faces, but at least three faces are obviously present. Sometimes called 'bone spar' in reference to the bone marrow-like texture. The natural corrosion is common among Mesa Grande District feldspars, but in my experience, rather rare in the Pala District. Also present are numerous, albeit quite small, tourmaline crystals. I personally collected this specimen from the Elizabeth R Mine dumps on July 25, 2005.