1) the splitting of a mineral along smooth, flat surfaces a) fracture b) density c) hardness d) cleavage 2) a substance in which the particles are arranged in an orderly, geometric, repeating pattern a) crystal b) mineral c) streak d) luster 3) the amount of matter in a given volume (mass divided by volume) a) mineral b) crystal c) density d) streak 4) the manner in which a mineral breaks along either curved or irregular surfaces a) fracture b) cleavage c) hardness d) luster 5) a measure of how easily a mineral can be scratched a) density b) hardness c) luster d) streak 6) the way a mineral reflects light a) streak b) luster c) density d) fracture 7) a naturally formed, inorganic solid that has definite crystalline structure a) pebble b) rock c) crystal d) mineral 8) the color of a mineral in powdered form a) streak b) luster c) color d) density

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