Dims: 2.1 x 1.9 x 1.7" (5.4 x 4.7 x 4.2 cm)
Wt: 3.4 oz. (97 g)
Bob and Ray Pocket, Crystal Creek, Florissant, Teller County, Colorado, U.S.A.
This hand specimen consists of a single large Microcline crystal that is in very good condition; it shows light damage at its termination but is otherwise intact. Its monoclinic prismatic form is likewise very good, showing obvious twinning. A few zones of white plagioclase are present in the crystal, earning this specimen the name "Perthite". Otherwise, the crystal has the standard blue-green coloration and a pearly-to-waxy luster. It extends from a base made up of albite and another, fractured and incomplete Amazonite.