Reddit reviews Large Stone 4.25"x2" Gold Testing Solutions Kit 10k 14k 18k 22k Silver Platinum Scratch Stone
We found 2 Reddit comments about Large Stone 4.25"x2" Gold Testing Solutions Kit 10k 14k 18k 22k Silver Platinum Scratch Stone. Here are the top ones, ranked by their Reddit score.
Great for gold buyingFresh acids
>...rubbing it on a stone and putting a drop of acid on the rubbings.
$12.39
Not sure what to tell you honestly as far as an easy local, source?
What does everyone do?
Buy something like this:
http://www.amazon.com/Testing-Solutions-Silver-Platinum-Scratch/dp/B005VEG5T0/ref=pd_sim_sbs_hg_1
is my best suggestion.