Removing Mineral Crust from Polished Granite

by, Mike Marsoun Removing a mineral crust from a polished granite surface can be difficult and dangerous. Some black granites (anorthosite) can actually have calcite minerals and if acid cleaning they can etch, which is not something you would normally expect with...

How to Prevent Formation of Mineral Stains on Grout

By, Mike Marsoun Ever notice a recently installed exterior stone floor with a black/brown growth on the grout joints. This is where water that has been saturated into the mortar setting bed, and in the heat of the day, escaping through the grout which is the path of...

Re-Installing Loose Floor Tiles

Written by Mike Marsoun, Published in “Stone World Magazine”, May 1996, pg. 106 Anyone that has been in the stone business over six months has more than likely experienced a “bond deficient” stone floor (and a frustrated customer waiting to hear some very bad news)....