Description: Microcline is one member of the feldspar which is the the most important rock forming mineral in earth surface rocks. This is the Microcline and Quartz combo specimen, milky yellow color, twinned crystal shape, greasy luster，sharp geometric shape, looks like popsicle! Assocaited with smoky Quartz, outstanding on the matrix, smoky Quartz are almost transparent. Some smoky Quartz grow cross the Microcline, very interesting crystal shape!