Orthoclase var. Adularia (Sterling Hill Mus. & Whitmore Coll.)

Item Description

Rock forming minerals such as feldspars are rarely collector-quality and even rarer to find them as gemmy crystals. This specimen consists of many parallel-growth, intergrown crystals of gemmy colorless orthoclase variety adularia crystals to 6.0 cm. It is of excellent quality and for its luster and brightness is remarkable! The piece is contacted on one side and the base. This is another outstanding classic from Switzerland. Ex Sterling Hill Mineral Museum and Robert Whitmore Collections. This is orthoclase, not albite as the label states.