What is black pirate glass?
What is black pirate glass? Pirate glass is colloquially described as “black” but the intensity of what is more likely to be blue, brown, green, purple or red glass has been deepened by the addition of cobalt, copper or iron oxides; or during the glass-making process, the addition of iron slag, or coal and wood ash.
Why is collecting sea glass illegal?
Take the time to stroll along the shoreline and search for colorful glass fragments. Remember, however, that collecting glass from the beach is prohibited to preserve its natural beauty and protect the ecosystem.