The color of rhodochrosite ranges from rose-red, pink, to light brown, depending on its concentration. It contains white streak. It is a carbonate mineral of manganese. It is cherished for its beautiful color. But because its brittleness, it is not treated as gems.
Its pretty pink color is caused by the element manganese and it is formed when manganese is dissolved by ground water and combined with a carbonate material and then drips off the ceiling of caves and crevices deep underground. It can be found in Argentina, Peru, and part of the US.
The item is slightly pinkish, with some rice like crystals protruding out its surface. The specimen weights about 4.25 X 3.5 inches and weights about 14.9 oz.