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2. Granite - Wikipedia

   en.wikipedia.org/wiki/Granite

   Granite is a natural source of radiation, like most natural stones. Potassium-40 is a radioactive isotope of weak emission, and a constituent of alkali feldspar, which in turn is a common component of granitic rocks, more abundant in alkali feldspar granite and syenites. Some granites contain around 10 to 20 parts per million (ppm) of uranium.

3. Countertop - Wikipedia

   en.wikipedia.org/wiki/Countertop

   Kitchen stone countertops, USA. Natural stone is one of the most commonly used materials in countertops. Natural stone or dimension stone slabs (e.g. granite) are shaped using cutting and finishing equipment in the shop of the fabricator. The edges are commonly put on by hand-held routers, grinders, or CNC equipment.

4. List of quarries in the United States - Wikipedia

   en.wikipedia.org/wiki/List_of_quarries_in_the...

   Stone Mountain, Georgia, site of granite quarrying from the 1830s. Its granite was used in the locks of the Panama Canal and in steps to the U.S. Capitol building. The mountain is known for its Confederate memorial carving started by Gutzon Borglum and for association with the Ku Klux Klan revival in 1916.

5. Is Limestone or Quartzite Better for a Fireplace Surround ...

   www.aol.com/lifestyle/limestone-quartzite-better...

   This natural stone has a very high tolerance for heat, ... How to Seal Granite Countertops and Other Stone Surfaces. ... Granite is a highly durable option that can be used for electric, gas, and ...

6. List of decorative stones - Wikipedia

   en.wikipedia.org/wiki/List_of_decorative_stones

   The granite of the dimension-stone industry along with truly granitic rock also includes gneiss, gabbro, anorthosite and even some sedimentary rocks. Natural stone is used as architectural stone (construction, flooring, cladding, counter tops, curbing, etc.) and as raw block and monument stone for the funerary trade.

7. Jury finds stone companies at fault in lawsuit by countertop ...

   www.aol.com/news/jury-finds-stone-companies...

   A Los Angeles County jury found businesses that make or distribute engineered stone at fault Wednesday for the suffering of a 34-year-old stonecutter afflicted with an incurable disease.