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Rocks and Minerals Crossword

Across
A rock that has a lot of strata. The most important feature in it is stratification.
Layers of rock (singular stratum), minerals, or anything.
A naturally formed, inorganic solid that has a definite crystalline structure and usually has the same chemical composition.
A rock that has changed in structure, texture, or composition is a _______.
A process of surrounding a solid with a powder and heating the whole so that the solid is changed by chemical combination with the powder.
A naturally occurring solid mixture of one or more minerals or organic matter.
A type of igneous rock that forms as a result of volcanic activity at or near the Earth's surface.
A mineral that does not contain compounds of silicon and oxygen.
The series of processes in which a rock forms, changes from one type to another, is destroyed, and forms again by geological processes.
The process in which a material is laid down.
The way in which a mineral reflects light.
The process by which wind, water, ice, or gravity transports soil and sediment from one location to the other.
Down
A mineral that contains a combination of silicon, oxygen, and one or more metals.
The color of the powder of the mineral.
A measure of ability of a mineral to resist scratching.
Refers to the quality of a rock based on the sizes, shapes, and positions of the rock's grains.
The chemical make-up of a rock; describes either the minerals or materials in the rock.
The process by which rock materials are broken down by the action of chemical or physical processes.
Describes the texture of a metamorphic rock in which the mineral grains are not arranged in planes or bands.
The act or process of compacting: the state of being compacted, pushed together.
Describes the texture of a metamorphic rock in which the mineral grains are arranged in planes or bands.
A type of igneous rock that formed from the cooling and solidification of magma beneath the Earth's surface.
A rock that forms when hot liquid rock or magma cools and solidifies.