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ROCKS

Across
Hot fluid or semifluid material below or within the earth's crust from which lava and other igneous rock is formed on cooling
Matter that settles to the bottom of a liquid
Solid inorganic substances of natural occurrence
Type of rock formed when subjected to high heat, high pressure, hot mineral-rich fluids, or a combination of such
Rock that is not banded or layered
Hot molted or semifluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this
The process where rocks are broken down by natural forces such as wind and water
Igneous rock that is relatively rich in elements that form feldspar and quartz
Down
The process of wearing or being worn by long exposure to the atmosphere
A silicate mineral or igneous rock rich in magnesium and iron
Type of rock that has formed through the deposition and solidification of sediment
Type of rock with cavities formed by expansion of gas or steam bubbles during solidification
A type of metamorphic rock that has distinct, repetitive layers
Rocks formed by the solidifying and cooling of molten materials
The solid mineral material forming the surface of the earth and other similar planets