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ROCKS AND MINERALS

Puzzle Type: Educational
Across
a person who specializes in geologic research and study
a substance obtained by mining, as ore
to arrange or organize by classes; order according to class
a metal-bearing mineral or rock, or a native metal, that can be mined at a profit
the heating of two substances in contact in order to effect some change in one of them
the characteristic physical structure given to a material, an object, etc., by the size, shape, arrangement, and proportions of its parts: soil of a sandy _______; a cake with a heavy _______.
mineral matter of variable composition, consolidated or unconsolidated, assembled in masses or considerable quantities in nature, as by the action of heat or water
having been forced between preexisting rocks or rock layers while in a molten or plastic condition
an excavation made in the earth for the purpose of extracting ores, coal, precious stones, etc
NOT composed of thin easily separable layers
any small, hard particle, as of sand, gold, pepper, or gunpowder
Down
molten material beneath or within the earth's crust, from which igneous rock is formed
noting or pertaining to a class of igneous rocks that have been forced out in a molten or plastic condition upon the surface of the earth
the molten, fluid rock that issues from a volcano or volcanic vent
mineral or organic matter deposited by water, air, or ice
the consolidation of sediments resulting from the weight of overlying deposits
the act or process of depositing
the reclaiming of desert, marshy, or submerged areas or other wasteland for cultivation or other use
the process by which the surface of the earth is worn away by the action of water, glaciers, winds, waves, etc
composed of thin easily separable layers