A rock with a water filled cavity
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Category: <span>E</span>
A geological process that originates from within the earth
A coating or deposit of minerals formed on the surface of matter
Where the lowest point of a river meets a larger, tidal body of water
A suspension of one liquid type in another
Shared held in trust until conditions of fulfillment are met
An electromagnetic survey used to outline metallic minerals, or lack thereof
A rock or boulder usually transported by erosion, usually emplaced outside its origin
A green variety of beryl, sapphire or tourmaline used as a gemstone
The breaking down of rock and material by usually natural forces of water and gravity