Spectrolite (Labradorite) Feldspar Rough from Finland
This Spectrolite (Labradorite) Feldspar Rough comes from Finland. Finnish Spectrolite is the finest labradorite available. The dark background causes the colors to really flash and stand out. This material was bought decades ago. Choose from our medium or high grade material. All labradorites are plagioclase feldspars, so they will cut and polish easily. Use tin oxide and diamond. Mohs Hardness 6 to 6.5.