rocks and minerals

Question 1

mineral

Answer 1

a naturally formed inorganic solid that has a definite chemical structure

Question 2

rock

Answer 2

a naturally occurring solid mixture of one or more minerals or organic matter

Question 3

element

Answer 3

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

Question 4

compound

Answer 4

a substance made up of atoms of two or more different elements joined by chemical bonds

Question 5

crystal

Answer 5

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

Question 6

luster

Answer 6

the way in which a mineral reflects light

Question 7

streak

Answer 7

the color of the powder of a mineral

Question 8

cleavage

Answer 8

the splitting of a mineral along smooth flat surfaces

Question 9

fracture

Answer 9

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

Question 10

density

Answer 10

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

Question 11

ore

Answer 11

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