Spectrolite (Labradorite) Feldspar Cutting Rough
Finnish Spectrolite is the finest labradorite available.
The dark background makes the flashing colors of labradorescence really stand
out. Spectrolite is now difficult to obtain, but we bought this material decades
ago. All labradorites are plagioclase feldspars which cut easily and polish
with tin oxide and diamond. Mohs Hardness 6 to 6.5.
We have more selections of this material on our new website: CopperCanyonLapidary.com