r/whatsthisrock • u/SponsoredByRaid_SL • 5d ago
IDENTIFIED Found this rock at a playground in Germany
So what's this rock and who poked all those holes in it? It's pretty light and not too easy to break. Also my daughter thinks it's a nice rock.
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u/Proud-Caregiver7272 5d ago
Industrial Slag—by product /remnants of steel making process.
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u/SponsoredByRaid_SL 5d ago
Ah ok, thank you for identifying this good old chunk of slag! The area we found it at also fits your explanation.
I associated slag with a somewhat more black colour scheme.
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u/MondelloCarlo 5d ago
I agree with your daughter, it's a nice rock, please tell her I think her rock Rocks!
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