K-Feldspar var. Adularia (fine - rare from USA ! )

Item Description

A RARE, sculptural solid large mounded crust of pearlescent, bright bone-white, sharp adularia crystals from 2013 mining efforts at this old Arkanas quartz mine, discovered in 1865. Most specimens from the find were quartz and adularia, so this exceptional piece is unique. Adularia, a variety of K-feldspar, is very rare from Arkansas. "So far they have hit a major pocket of adularia and quartz combination specimens which are unique in quality and size for North America." See http://www.mindat.org/loc-11725.html. Valued at $500. A must for the species or locality collector. Adularia in such crystals simply is not known from the USA beyond a few finds.