What is Quartzite

Quartzite is a metamorphic rock, mud, stones, silt stones, shales and volcanic ash that contains different compositions. Metamorphism caused by the cleavage structures, as these stones into slabs of natural causes separation. Due to so many different minerals and compositions, is able to provide different colors and patterns. Export potential is high, slate roof coverings, floor and landscape architecture with the outer coatings are used for.

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04 Aralık 2012

Everything you see today as "solid earth" has moved, and all the solid rocks you see today were once in a different place.

About 200 million years ago, there were mountains perhaps as high as the Himalayas (20-25,000 feet) in Northern Virginia. Perhaps five miles of rock once covered the surface where the Metro trains run today...

Rain and wind is constantly eroding the surface, wearing down the mountains. Water dissolves minerals, converts solid rock into clay, and moves grains of sand downstream to the Chesapeake Bay, Virginia Beach, and (ultimately) the continental shelf

Today the rivers run in channels that are relatively recent. The Potomac River did not cut through the Blue Ridge at Harpers Ferry until 5 million years ago.