As an aside to this conversation : brown glass " gemstones" were faceted and mixed with similar colored faceted garnets that were sourced in the San Diego gem mine region in about 1900.Faceting in America was advancing rapidly as was gem mining especially tourmalines. Garnets were a reasonably priced easily cut low end faceted stone but glass in the form of " breweryites" was a constant problem in the parcels. The garnets were never made into beads but the pink tourmaline was occasionally made into beads but all production was exported.