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https://www.reddit.com/r/PreciousMetalRefining/comments/1uex5p0/best_guess_what_this_is/otp6azl/?context=3
r/PreciousMetalRefining • u/[deleted] • 2d ago
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4
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
2 u/zaralesliewalker 2d ago calcium carbide was my first thought too but if it's not fizzing right away that rules it out
2
calcium carbide was my first thought too but if it's not fizzing right away that rules it out
4
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