Can you engrave on found river rocks/pebbles?

Hey guys,
I’m a new Glowforge user and found a bunch of river rocks/pebbles in nature that I would love to engrave on. Is this possible/safe? What settings would be recommended?
Thanks c:

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Yes,lots of examples here.

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I makes a big difference what the pebbles are but generally yes

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There’s a search function at the top of every page. As stated, lots of existing discussion on engraving stone.

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Generally speaking the darker (for contrast) and more homogeneous (for consistency) the mineral the better the result.
Testing different materials is a treasure hunt, indulge in the joy of discovery!
That being said, you are wise to be cautious and ask until you have more experience.

Welcome to the forum - and the great adventure of owning a laser!

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just be sure it’s not coal :slight_smile:

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Thank you! :slight_smile:

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Good luck. If you get some good results be sure to show us a few pics.

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Now you got me wanting to try that. Have a piece of coal right here. It is WV after all.


Oh, maybe I won’t. Too much trouble to remove the crumb tray and grab the fire extinguisher.

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Left over from your Christmas stocking? :stuck_out_tongue_winking_eye:

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or Phosphorous

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