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Chapter 4:1 & 5

QuestionAnswer
mineral A naturally occurring inorganic that has a crystal structure and a definite chemical composition.
Moh’s hardness scale Rates the hardness of minerals on a shale from one to ten.
streak The color of its powder.
luster Is the term used to describe how a mineral reflects light on its surface.
cleavage A mineral that splits easily on a flat surface.
fracture Describe how a mineral looks when it breaks apart in an irregular way.
fluorescence Minerals that grow under ultraviolet light.
texture The look and feel of a rock's surface.
grain Particles or minerals
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: WadeOwe11
Popular Earth Science sets

 



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