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ROCKS AND MINERALS

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