Treasurehunt Posted March 22, 2020 Share Posted March 22, 2020 Why is it so much oxidation on this rock? Is it oxide of iron? Thank you 1 Link to comment Share on other sites More sharing options...
DDancer Posted March 25, 2020 Share Posted March 25, 2020 Could be iron oxide. Looks like sandstone with chalcedony quartz ridges in the matrix. Iron oxides are very common in many types of minerals and usually are orange to red in color and can come from a variety of iron rich minerals. 4 Link to comment Share on other sites More sharing options...
oldmancoyote1 Posted April 10, 2020 Share Posted April 10, 2020 Looks like it was massive pyrite in a framework of quartz veinlets. It's possible the massive pyrite came first and the quartz framework was added as part of the process that oxidized the pyrite. It's definitely an unusual rock in my experience. 1 Link to comment Share on other sites More sharing options...
Steve Herschbach Posted April 10, 2020 Share Posted April 10, 2020 First thing I’d do is break it to examine a fresh surface. Looking at weathered surfaces is just a guessing game. Link to comment Share on other sites More sharing options...
oldmancoyote1 Posted April 11, 2020 Share Posted April 11, 2020 A guessing game? Gee. I didn't know that. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now