Earth Science Plate Tectonic Pic-a-Project Crossword

how light reflects of a mineral (metallic or nonmetallic)
the ability of a mineral to resist being scratched
the color of the powder scraped off a mineral when rubbed against a rough, hard surface
when a mineral splits into smooth, definite surfaces
when a mineral breaks along rough or jagged surfaces
repeating pattern of a mineral having flat sides that meet in sharp edges and corners
rock containing rounded pebbles that is held together by clay or mud
minerals that are rare, hard, beautiful and durable that are often cut for jewelry
elements that are shiny, conducts heat and electricity, can be stretched into wire and bent into different shapes
elements with dull surfaces, are poor conductors of heat and electricity, and are not able to be stretched into wires or bent into different shapes
hard substances composed of two or more minerals
rock formed from hot, fluid magma or lava, "born of fire"
rocks formed when particles of rocks are carried and deposited by wind and water
rocked formed when chemical changes, heat or pressure, change rock, "changed rocks"
small particles of rock
igneous rock formed from magma within the Earth
igneous rock formed from lava outside of the Earth
the process of changing a rock into another as a result of heat, pressure, or chemical reactions
the continuous changing of rocks from one form to another over long periods of time.
naturally occurring, inorganic solid having a definite crystalline structure and unique chemical composition