Amethyst lot beach sea glass slag general electric vitrite insulator lot

#B you are getting a lot of everything you see in the photos. this is amethyst Sea Glass Beach Glass shards called Viterite. it is black amethyst it's pretty rare you can only get it in certain parts of lake Erie it is a slight glass that is commonly used as a dielectric (an electrical insulator used in the base of common incandescent light bulbs it consists of ground glass with copious amounts of lead oxide and magnesium oxide causing the purple. it was used at general electric from the 1950s and 60s if you have questions please ask these are great for crafts making jewelry when they are wet and held up to a light you can see the purple color. (some are thick so you may need a strong light)please thanks for looking have a great day