Luckysmama Posted February 29 Share Posted February 29 Found near mountain / river / creek bed in northern cali. So perfectly two toned. It’s heavy for the size 4”x2”. How does this even happen so neat! Not a whole lot of explanation when I searched online anyone have any more insight?! Thank you so much! 2 Link to comment Share on other sites More sharing options...
Al Dente Posted February 29 Share Posted February 29 Looks like the contact between two different igneous rock types. Link to comment Share on other sites More sharing options...
rocket Posted February 29 Share Posted February 29 nice and decorative find. But as mentioned, no fossils. Looks like that the stone was tumbled in a river or beach Link to comment Share on other sites More sharing options...
doushantuo Posted February 29 Share Posted February 29 (edited) I think Al Dente is spot on Very maybe an example of liquid immiscibility Edited February 29 by doushantuo Link to comment Share on other sites More sharing options...
Missourian Posted March 2 Share Posted March 2 Very cool piece. Gabbroic xenoliths are often found in granite. They are pieces of rock plucked from the walls of the magma chamber or conduit. Context is critical. Link to comment Share on other sites More sharing options...
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