JIMMFinsman Posted May 23 Share Posted May 23 Found this on the beach. Probably a quartz vein or something but the shape has me perplexed. I don't see much blue granite or any blue type of rock here in Delaware. Link to comment Share on other sites More sharing options...
Rockwood Posted May 23 Share Posted May 23 Possibly vesicular basalt, but this isn't granite or a fossil. 1 Link to comment Share on other sites More sharing options...
JIMMFinsman Posted May 23 Author Share Posted May 23 That's why I'm here! Thanks Link to comment Share on other sites More sharing options...
TqB Posted May 24 Share Posted May 24 Looks like industrial slag probably from steel smelting. (I don't know if there any igneous rocks around there that would look similar.) 1 Tarquin Link to comment Share on other sites More sharing options...
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