I have a customer with a black granite kitchen counter top. The top is getting glass rings and appears to be fading and loosing its color. What is happening?

This is common problem with a lot of black granite tops that have been fabricated in India. The tops are doctored by using wax, linseed oil etc. As the counter is cleaned the waxes and oils are being removed. The only solution is to polish the top. To verify that you are in fact dealing with a doctored top simply take a white rag and a little acetone and wipe the counter top. If it has been waxed you should get a black residue on the rag.

TIP To repolish the granite top you will need a special polishing powder designed for granite or you may need a lead and felt wheel.