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Earth Science 6th Grade


the way in which a mineral reflects light


the ratio of mass of a substance to the volume of the substance


a naturally formed, inorganic solid, not made in a lab, has a definite crystalline structure


a mineral's resistance to being scratched


the smallest part of an element that has all the properties of that element


a solid whose atoms, ions, or molecules are arranged in a definite pattern


a substance that cannot be separated or broken down into simpler substances by chemical means


type of mineral that contains oxygen and silicon


a measure of the ability of a mineral to resist scratching


the color of the powder of a mineral

native element

a mineral that is made up of only one element

non-silicate mineral

a mineral that does not contain compounds of silicon and oxygen


a naturally formed, inorganic solid that has a definite crystalline structure

streak plate

a piece of unglazed porcelain


a natural material whose concentration of economically valuable minerals is high enough for the material to be mined profitably


takes place when changes in pressure, temperature, or chemical make up alter a rock


the manner in which a mineral breaks along either curved or irregular surfaces


the splitting of a mineral along smooth, flat surfaces

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