A Sunstone Odyssey, Part 1: The Ponderosa
The first of a three-part series exploring Oregon’s state gem reports on a July 2013 visit to the Ponderosa mine, a prolific sunstone source surrounded by majestic ponderosas.
Three Occurrences of Oregon Sunstone
Chronicles a visit to the high desert of eastern Oregon to examine commercial sources of this natural copper-bearing feldspar.
Sunstone Labradorite from the Ponderosa Mine, Oregon
The Ponderosa mine is now producing commercial quantities of the gem-quality labradorite feldspar known as sunstone.