Granite – Used in the Countertop industry to encompass a wide variety of igneous stones. They are formed when molten magma is pushed towards the earths crust and is slowly cooled over time. Add into this a mixture of miscellaneous minerals it is primarily feldspar and quartz in it’s composition. Usually under this you will also find Quartzite.
Marble – Used in the Countertop industry to encompass a wide variety of sedimentary stones. These are formed as the sediments come into contact with time, pressure and heat with other minerals to form stone. These are usually Calcium Carbonate based and are easily stained, scratched and etched. Usually under this classification you will find marbles, travertine, soapstone, onyx and limestone. Although each one should have it’s own heading.
Other definitions can be found at here http://pinterest.com/domussurfaces/visual-glossary-of-stone-industry-terms/ Or http://marble-institute.com/consumers/glossary.pdf
From the Quarry to the Kitchen:
Real Stone: Real Value:
Care and Cleaning of Stone: