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Chapter 2

QuestionAnswer
minerals A natural occurring , inorganic solid that has a crystal structure and a definite chemical composition.
streak The color of a mineral's powder.
Mohs hardness scale A scale ranking ten minerals from softest to hardest; used in testing the hardness of minerals.
fracture The way a mineral looks when it breaks apart in an irregular way. A break in the bone.
solution A mixture containing a solvent and at least one solute that has the same properties throughout; a mixture in which one substance is dissolved in another,
vein A narrow deposit of a mineral that is sharply different from the surrounding rock. A blood vessel that carries blood back to the heart.
geode A hollow rock inside which minerals crystals have grown.
luster The way a mineral reflects light from its surface.
inorganic Not formed from living things or the remains of living things.
crystal A solid in witch the atoms are arranged in a pattern that repeats again and again.
cleavage A mineral's ability to split easily along flat surfaces.
crystallization The process by which an atom s are arranged to form a material with a crystal structure.
rock forming mineral Any of the common minerals that make up most of the rocks of Earth's crust.
basalt A dark, dense, igneous rock with a fine texture, found in oceanic crust.
igneous rock A type of rock that forms from the cooling of molten rock at or below the surface.
metamorphic rock A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions.
grains The particles of minerals or other rocks that give a rock its texture.
granite A usually light-colored igneous rock that is found in continental crust.
texture The look and feel of a rock's surface, determined by the size, shape, and pattern of a rock's grains.
sedimentary rock A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together.
extrusive rock Igneous rock that forms from lava on Earth's surface.
intrusive rock Igneous rock that forms when magma hardens beneath Earth's surface.
Created by: user-1975214
 

 



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