Are these rocks safe???
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Old 07-01-2012, 08:16 PM   #1
ramen lover
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Exclamation Are these rocks safe???

Got these rocks for really cheap at the local garden center. i *think* they are some sort of quartz? they are white/gray and sparkle a lot. i poured some vinegar on them and didn't really see any bubbles. can anyone confirm?
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