Concerned that your granite countertops might have been 'doctored' (dyed) to look like a higher quality stone? Are you in the selection phase of your new kitchen countertops and want to test acid sensitivity on your granite selections before you buy? This do-it-yourself test kit, created by renowned stone forensic expert, Fred Hueston, lets you test for these and other issues. You no longer have to have stone samples sent out to a lab for analysis.

Comes complete with detailed instructions on how to test and what results mean, and what to do if your tests come out positive.