Vnaz50 Posted February 24, 2021 Share Posted February 24, 2021 Below is a piece of sediment that I pulled from my yard here in San Antonio, Tx. I’m just not 100% sure on what type of rock this is sitting on top of the sediment. Link to comment Share on other sites More sharing options...
IsaacTheFossilMan Posted February 24, 2021 Share Posted February 24, 2021 The third picture makes me think it's chert, or flint. ~ Isaac; www.isaactfm.com "Don't move! He can't see us if we don't move!" - Alan Grant Come to the spring that is The Fossil Forum, where the stream of warmth and knowledge never runs dry. Link to comment Share on other sites More sharing options...
Rockwood Posted February 24, 2021 Share Posted February 24, 2021 30 minutes ago, Vnaz50 said: ’m just not 100% sure on what type of rock this is sitting on top of the sediment. I think the rock is the sediment. Notice the form of a stone in its surface. I believe this is where aggregate pulled away from the mineral cementing a conglomerate. 1 Link to comment Share on other sites More sharing options...
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