wvsteve Posted October 14, 2023 Share Posted October 14, 2023 I'm pretty sure the one is just slag. But the rounder one is really hard . Link to comment Share on other sites More sharing options...
wvsteve Posted October 15, 2023 Author Share Posted October 15, 2023 The first one I'm pretty sure is slag. Link to comment Share on other sites More sharing options...
Geologyhound Posted October 15, 2023 Share Posted October 15, 2023 The greenish one may be chrysoprase - a greenish variety of agate. Any agate variety can scratch glass. Link to comment Share on other sites More sharing options...
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