First item - vintage West German mountain top glass cabochon in a silver oval bezel setting. This comes with a 24 inch silver plated curb chain. Pendant is approximately 25x18mm. These rare cabs were made in West Germany in the 1960s. They have a silver foil backing with volcano finish, which produces an iridescent multicolor flash of colors ranging from golds and purples to deep pinks and blues.
Second item - I purchased a small bag of Welo Ethiopian opal rough a while back and have spent time cleaning and polishing some of the stones. This one is semi-transparent with fire and flash in gold, green, pink, violet, and blue. I wrapped it with square silver wire and added a 24 inch 925 sterling silver chain. Stones listed as natural, raw, or rough may have some imperfections and inclusions. Please see photo with ruler for size.