Rocks and Minerals
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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Acid Rain | Precipitation of relatively high acidity that is formed when airborne oxides of sulfur and nitrogen combine with moisture in the atmosphere.
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Conglomerate | A rock made of mineral and rock fragments.
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Crystal | A solid substance in which the particles are arranged in an orderly,repeatable pattern.
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Crystallization | The process by which crystals are formed.
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Cubic | A crystal form characterized by three equal axes at right angles to each other.
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Evaporation | The conversion of a substance from a liquid to a gaseous state.
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Fossil | The remains, impressions, or other evidence of living things preserved in rock.
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Hardness | The resistance of the surface of a mineral to scratching by another substance.
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Hexagonal | A crystal form characterized by three equal lateral axes intersected at 60 degrees and a vertical axis of variable length at right angles.
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Igneous | A type of rock formed by the cooling and crystallization of molten materials.
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indigenous | Occuring naturally in a particular place or region.
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Laser | Light Amplification by Stimulated Emission of Radiation.
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Lava | Molten rock that flows from volcanos or Earth fissures.
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Luster | The way a mineral reflects light.
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Magma | The hot' liquid rock within the Earth's crust.
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Metallic Luster | Describes a mineral that is usually dark in color, is always opaque, even on its thin edges, and shines like polished metal.
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Metamorphic | A type of rock formed when igneous, sedimentary, or even other metamorphic rocks are subjected to extreme heat and/or pressure deep below the Earth's surface.
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Mineral | A naturally occuring,solid,inorganic substance with a definite chemical compisition and usually crystalline in form
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Mohs scale of hardness | A scale that ranks the hardness of minerals relative to the hardness of other minerals.
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Monoclinic | A crystal form characterized by three unequal axes with one oblique intersection.
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Non Metallic Luster | Describes a mineral that is usually light color and whose surface appears glassy,greasy, brilliant pearly silky or dull.
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Orthorhombic | A crystal form characterized by three unequal axes at right angles to each other.
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Petrifaction | The process of petrifying,or becoming a fossil (also known as petrifaction)
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Piezoelectric | A type of electicity generated by applying pressure to a crystalline substance such as quartz.
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Property | Any quality that serves to describe or define an object, matierial or relationship.
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Rock | A naturally occuring inorganic solid usually comprised of a mixture of different minerals and other materials.
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Sedimentary | A type of rock formed by the solidifacation layers of sediment.
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Silicon | One of the most abundant elements on earth; It's electrical properties enable it to be used in electric properties.
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Streak | The color of a fine powder of a mineral obtained by scratching or rubbing.
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Tetragonal | A crystal form characterized by three axes at right angles which only the two lateral angles are equal.
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Triclinic | A crystal form characterized by three unequal axes intersecting at oblique angles.
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Weathering | The discoloration or breakdown of rocks and minerals due to the action of water, atmosphere, andorganisims.
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