Granite Edges at GraniteAndMarbleEstimate.com

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EDGES - DIFFERENT HARDNESSES

It gets worse. As we continue reading we learn that "granite measures a seven on a scale of one to 10." I was not aware that there is a hardness scale for rocks, which must be tricky to produce because granite is usually composed of three minerals of quite different hardnesses. Quartz is 7, feldspar is usually 6, and biotite varies from 2.5 to 4, depending upon direction. But we are not done yet, for we are also told that "nothing can put a nick in granite edges except a diamond," which is, of course, not true. I guarantee that I can "nick" your granite edges with a variety of household items, including an ice pick. Granite may be, however, unforgiving on your diamond if you happen to accidentally knock the stone in your ring against your countertop; even if it is not granite but one of the dozens of other countertop stones, your diamond may not survive. One dealer did recognize a threat by saying, "If you run into a granite corner, you can really bruise yourself." That certainly needed to be said, and I could not agree more.