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Banded Onyx Pyramid

SKU: 400004588090

$5.99
Onyx is formed from dissolved carbonate minerals (usually calcite) when limestone or dolomite sediments come into contact with hot water. Heat from recent volcanic activity causes this hydrothermal alteration and the dissolved minerals are then precipitated when these fluids reach the surface. Precipitated carbonates from these hydrothermal solutions are called "flowstone" or travertine, as well as onyx. Red, green and orange colors result from trace amounts of impurities. ____This beautiful stone is from the Balochistan Province in western Pakistan. Skilled artisans in Karachi, Pakistan, turn solid stone blocks on lathes to create beautiful bowls, vases and plates. Read More >
Banded onyx is a fascinating semi-precious gemstone: while onyx is most commonly black, banded onyx, mined in Pakistan, naturally comes in an unusual pattern of colours that range from pale green to rust, to cream. Onyx is formed from dissolved carbonate minerals (usually calcite) when limestone or dolomite sediments come into contact with hot water. Heat from recent volcanic activity causes this hydrothermal alteration and the dissolved minerals are then precipitated when these fluids reach the surface. Precipitated carbonates from these hydrothermal solutions are called "flowstone" or travertine, as well as onyx. Red, green and orange colors result from trace amounts of impurities. This beautiful stone is from the Balochistan Province in western Pakistan. Skilled artisans in Karachi, Pakistan, turn solid stone blocks on lathes to create beautiful bowls, vases and plates, etc. This natural gemstone pyramid is stunning and would make a truly thoughtful keepsake for that someone special.