“Although both are stones and both are qusarried from the earth, granite and marbe (and marble’s relatives – limestone, onyx and travertine) are very different from each other.”Although both are stones and both are qusarried from the earth, granite and marbe (and marble’s relatives – limestone, onyx and travertine) are very different from each other.

Granite is formed deep in the earths mantle at extremely high temperatures and is a very hard, resistant stone made of crystallized minerals.

The marble family – limestone, travertine, marble and onyx – starts out as sediment – animal skeletons and shells, plant matter, silt at the bottom of bodies of water.  After millons of years this solidified (lithifies) into stone.  Because its main compenet is calcium, it can be affected by acids such as vinager and citrus beverages.”

Because Granite is very hard stone that’s formed at very high temperatues deep within the earth, its polish is not subject to etching by household acids, or scratching by knives, pots, and pans.  It’s unaffected by typical kitchen heat such as hot pans, or spilled liquid.

Yes.  In fact, marbles that have a honed finish are less susseptable to etching because it starts out with a matte finish.  Because marbles (and the marble family) are calcium carbonate, the polished surface is more vulnerable to household acids including, but not limited to, vinegar, mustard, ketchup, citris, and a host of other food-related products.  These acidic substances cause a chemical reaction which will remove the polish.  Additionally, marble and limestone can be scratched more easily than harder stones such as granite.  Marble is, however, sometimes used in the kitchen as a pastry slab; its perfetly smooth surface is ideal for rollingour dough and piecrusts

Marble, travertine, or limestone that is honed has a matte, or stain finish, rather than a high reflective polish. This is achieved at the factory by stopping just short of the last stage of polishing. Some fabricators, like Amendola Stone & Tile, have special equipment and can hone marble in their shops by removing the factory polish. One feature of honed marble is that it is less likely to show etching as readily, or wear patters on floors. It is preferred by some becuase it has a less formal, softer appearance than polished stone.

“Etching happens when acid in some form comes in contact with a marble or limestone surface. This causes a chimical reaction which removed the polish, or roughens the surface of honed marble or limestones.

Acids that can be found in acidic foods, such as orange juice, lemon juise, wine, vinegar, certain cosmetics, bath & tile cleaners, other harsh household cleaners, etc. are the largest causes of etching. They will begin to etch marble upon contact, whether they marble has been sealed properly or not. Etchn marks appear on marble as spots, ring marks, or areas that appear to be duller then the surrounding stone. Once the stone is etched, stone cleaners will not remove the marks.

Etch marks range from minor to severe and can cause visible pitting or “”cratering””. Should this occur, the stone must be patched or replaced.

It is in the best interest of the home/office owner to make every effort to ensure acidic substances do not come in contact with stones in the marble family. Although spills are inevitable, the must be taken care of quickly. The best method for removing acidic spills is to wipe inward to avoid spreading them to uncontaminated areas.”

All stone, even granite, is porous to some degree, and will absorb stains over time. Some stones are more porous then others, so it is important to use a penetrating sealer to prevent stains from oil, wine, or other liquids from soaking into the surface. Please see our Care and Maintenance section for more information.

“Most stone installations will require seams. There are several reasons why seams are necessary. Limits in slab sizes, cut outs in the stone, type of stone, and even the size of the elevator, staircase, or doorways may result in the need for seams.

Seams are created by joining two pieces of stone together with an epoxy that is mixed to match the color of the stone.

If a seam is required, the best and least noticeable areas to place them is near sinks or cooktops, which will result in a less visible appearance. However, actual seam placement is dependent on slab size, layout and design.

The visibility of the seam is also dependent on the color and pattern of the stone. Seams on lighter colored stones, or stones with extreme veining and patterns will appear more noticeable then on darker stones or stones with a more uniformed appearance.

 

“Sometimes natural stones contain natrual fissures, which may look like cracks, but are not defects in the stone.

Fissures are natural clefts in the stone that occur naturally as a result of immense heat and pressure which formed the stone millons of years ago. These characteristics are part of its natural beauty and will not impair the durability or function of the stone.”