Help identify

[Seth Harville]

Found this on the railroad tracks in London Kentucky. I took a grinder to a few spots and it’s light blue hopefully you can see in the pics. It’s really heavy to

 

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[Terry Soloman]

Looks like basalt, maybe ironstone. Basically, it's a rock.

 

[bowwinkles]

Looks like basalt, maybe ironstone. Basically, it's a rock.

In humans its called chicken pox, in this case I think it may very well be and advanced case of "rock pox". In Idaho they call it lava.

 

[Seth Harville]

Haha thanks for the help I appreciate it