rock and minerals Flashcards
rock
solid mineral material forming part of the surface of the earth and other similar planets, exposed on the surface or underlying the soil or oceans.
mineral
a naturally formed, inorganic solid that has a definite crystal line structure
element
a substance that can not be separated or broken down into simpler substance by chemical means
compound
a substance made up of atoms of two or more different elements joined by chemical bonded
crystal
a solid whose atoms, ions, of molecules are arranged in a definite pattern
color
usually the first characteristic to be noticed about a mineral, but generally not reliable
luster
the way a surface reflects light
streak
the color of the powder of a mineral
cleavage
the splitting of a mineral along smooth, flat surfaces