rocks & 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 oxdies of sulfer and nitrogen combine with moisture in the atmosphere.
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conglomerate | A rock made out of mineral and rock fragments
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crystal | A soild sudstance in which the particles are arranged in a orderly, repeatable pattern
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crystallization | The process of 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 sudstance from a liquid to a gaseous state.
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fossil | The remians, imprressions, or other evidence of living things preserved in a rock.
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hardness | The resistance of a mineral to scratching by another sudstance.
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hexagonal | A crystal form characization by three equal lateral axes intersected at 60 degrees and a vertical axis of variable lenght 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 volcanoes 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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sedimentary | A type of rock formed by solidification of layers of sediment.
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silicon | One of the most abundant elements on earth; its electrical properties enable it to be used in electronic devices.
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streak | The color of the fine powder of a mineral obtained by scratching or rubbing the mineral against piece of unglazed ceramic tile.
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tetragonal | A crystal form characterized by three axes at right angles, of 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, the atmosphere, and organisms.
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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 occurring, solid, inorganic substance with a definite chemical composition 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 to other minerals.
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monoclinic | A crystal form characterized by three unequal axes with one oblique intersection.
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nonmetallic luster | Describes a mineral that is usually light colored 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 petrification).
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piezoelectric | A type of electricity 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, material, or relationship.
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rock | A naturally occurring inorganic solid usually comprised of a mixture of different minerals and other materials.
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