This video from The Potomac Bead Company talks about the gemstone Sunstone, which is a beautiful feldspar. Enjoy using this in your beading and ...
Don buford of Dust Devil Mining gives a detailed description of the system used to grade facetted oregon susntones. Full spectrum is covered, as well as insure ...
Oregon Sunstone Gemstone Grading System
The Oregon Ponderosa Mine by GIA. In this video, John Woodmark discusses the Oregon ponderosa sunstone mine.
The Oregon Ponderosa Mine by GIA