Marble

There are 21 different historically notable marble varieties

Marble is a non-foliated metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or dolomite.  it is commonly used for sculpture and as a building material. It is a rock resulting from metamorphism of sedimentary carbonate rocks, most commonly limestone or dolomite rock. Metamorphism causes variable recrystallization of the original carbonate mineral grains. The resulting marble-rock […]

Black Marble

Black Marble images display all the human and natural matter that glows and can be sensed from space

On December 5, 2012, NASA released a nighttime view of Earth called Black Marble during an annual meeting of earth scientists held by the American Geophysical Union in San Francisco. The images display all the human and natural matter that glows and can be sensed from space. The data was acquired by the Suomi NPP […]