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All about Rocks!

Across
A person who loves everything about rocks and enjoys collecting rocks.
Sedimentary rock made up mostly of pieces of dead coral and molluscs and the minerals calcite and aragonite.
Rocks that are formed from sand, shells, and other broken rocks when these layers are compressed into rock.
Soft limestone and dolomite rock in the Earth that has dissolved in rainwater eventually creating hollowed out areas in the Earth called caves.
Rocks that come from volcano eruptions.
All precious and semi-precious stones.
Down
Dolomite limestone ranging in color from white to red and brown to black. It is found only on Cayman Brac and Grand Cayman Island.
These rocks are formed from Igneous and sedimentary rocks under heat and pressure inside the Earth.
Solid formations formed naturally in the Earth. A rock is a solid combination of more than one of these.
The result of broken down rocks.
Natural substances composed of solid crystals of different minerals fused together into solid lumps.