Vnaz50 Posted April 28, 2021 Share Posted April 28, 2021 San Antonio, Tx 78023 I have this rock from my yard that looks like it’s covered in iron and something else, but below that it looks like it’s been burned. Link to comment Share on other sites More sharing options...
Norki Posted April 28, 2021 Share Posted April 28, 2021 The black stuff you're talking about is probably manganese, it occurs commonly with iron. 2 Link to comment Share on other sites More sharing options...
Vnaz50 Posted May 4, 2021 Author Share Posted May 4, 2021 Then I would assume the rocks in the front that appear to have veins, is where the iron and manganese got into fractures? Link to comment Share on other sites More sharing options...
Recommended Posts