Complex sentence: Glass from inland waterways such as Chesapeake Bay and the Great Lakes, is known as "beach glass" and similar to sea glass, but in the absence of wave rigor and oceanic saline content is typically less weathered.
Split into simpler sentences: Glass from inland waterways such as Chesapeake Bay and the Great Lakes, is known as beach glass. It is similar to sea glass, but in the absence of wave rigor and oceanic saline, content is typically less weathered.