tyto Posted October 6, 2020 Share Posted October 6, 2020 Quote Link to comment Share on other sites More sharing options...
d_day Posted October 7, 2020 Share Posted October 7, 2020 I’m leaning toward it being slag, but it looks like it might be vesicular basalt. Tough to tell from photos. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.