[octex]

...beach glass...
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Second mention of that on this thread.

What is ‘beach glass’?

[Raycpa]

Beach glass is glass (usually fragments of bottles)that has been smoothed and sanded by the action of waves and sand.

[NoGrayZone]

Beach glass is beautiful. It's glass that has been in the oceans for many years and has been “rough and tumbled”. It loses it's shiny glass look, no sharp edges, etc.

I actually found 2 pieces of black beach glass, which dates back to the 1700-1800’s. It's very rare.

There are also beach glass “marbles”. They look exactly like marbles, but are glass. Those are rare as well.

Look up some pics of beach glass. A lot of people make jewelry from it.

[NoGrayZone]

These are some I made (I know, looks like a 5 year old made them)