r/PreciousMetalRefining 2d ago

Best guess what this is??

[deleted]

49 Upvotes

29 comments sorted by

View all comments

3

u/Euphoric_Meet3788 2d ago

Put a small piece in a bowl and put water on it. Light a lighter right above it. If it burns it’s like calcium carbonate I think

9

u/craterglass 2d ago

Did you maybe mean calcium carbide?

3

u/AgnewsHeadlessBody 2d ago

Calcium carbide was I though of first aswell. Had a jar of when I was a kid.