Found all over the world, calcite is the most stable form of calcium carbonate and is the main mineral found in limestone. We ...

Inside Wind Cave the scientists found that chemicals fossilised within the rocks shine in brilliant hues of pink, blue, and ...

The process may be aragonite crystallizing to calcite, as in fossil snails, or it may be the growth of larger crystals of an existing mineral such as the large calcite crystals in the algae (note the ...

Astrobiologist Joshua Sebree of the University of Northern Iowa suggests that South Dakota's Wind Cave exhibits chemical ...