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4:1 5:1 vocab

QuestionAnswer
mineral a naturally occurring, inorganic solid that has a crystal structure and a definite chemical composition
Moh’s hardness scale a scale ranking ten minerals from softest to hardest used in testing the hardness of minerals
streak the color of a mineral’s powder
luster the way a mineral reflects light from its surface
fracture the way a mineral looks when it breaks apart in an irregular way
fluorescence the property of a mineral in which the mineral glows under ultraviolet light
texture the look and feel of a rock’s surface, determined by the size, shape, and pattern of a rock’s grains
grain a particle of mineral or other rock that gives a rock its texture
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 existing rock that is changed by heat, pressure, or chemical reactions
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
sediment small, solid pieces of material that comes from rocks or organisms
erosion the destructive process in which water or wind loosen and carry away fragments of rock
foliated term used to describe metamorphic rocks whose grains are arranged in parallel layers or bands
Rock cycle a series of processes on the surface & inside Earth that slowly change rocks from one kind to another
Created by: Loganreyes
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