I used rock tumblers to make sea glass. Tumbling glass in a rock tumbler allows you to make your own sea glass in just 3-5 days.

Companies or people trying to sell sea glass art or jewelry might take a rock tumbler to erode the glass artificially. Tumbled glass typically won’t have the “frosted” appearance that sea ...

Around the deep-sea vents off the southern coast of Japan, a small, “glass”-like creature was discovered. Getty Images/iStockphoto Off the coast of Japan, thousands of feet below the surface ...