Earth’s Rocks Contain a Hidden Ocean’s Worth of Water – NBC News.com

But do not expect to quench your thirst down there. The water is not liquid — or any other familiar form like ice or vapor. It is locked inside the molecular structure of minerals called ringwoodite and wadsleyite in mantle rock that possesses the remarkable ability to absorb water like a sponge.

via Earth’s Rocks Contain a Hidden Ocean’s Worth of Water – NBC News.com.