How a rock reflects light is a characteristic called___________. - Luster, You might use a hand lens to help classify rocks by their__________. - texture, You can test a rock's _______ hardness using your fingernail and a stell nail. - hardness, A rock that is made up of large crystals has a ______ grained texture. - coarse, A rock that is very shiny is classified as having a______ luster - metallic,

Classifying Rocks 3rd Grade

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