Sea glass is a term that is given to glass that washes up along the coast of bodies of water. Humans began creating glass before 2,000 B.C. It’s common to find sea glass in places all across the world. However, most of the sea glass that you will find is likely to come from either the 19th or 20th century. Sea glass collecting has risen in terms of popularity in the last decade. If you’re out looking sea glass, it’s wise to know unique sea glass identifiers. Here are four unique ways that can be used to help you find…