crumpybumpy
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Any ideas on the ID of this rock found in the Ramapo Mountains of northern New Jersey? Thank you!
Rock ID of find in Ramapo Mountains New Jersey
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IAMZIM
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It looks to me like a type of metamorphic rock. Maybe someone with better knowledge than I will chime in.
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Eu_citzen
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Hornfels? Or a "halleflinta"? (yeah, I don't know the english name)
https://www.britannica.com/science/halleflinta
https://www.britannica.com/science/halleflinta
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