Rock and mineral Flashcards
Mineral
rock
Rock
mineral
Element
is a substance whose atoms all have the same number of protons
compound
a thing that is composed of two or more separate elements
Crystal
a solid material
Color
visual perception
Luster
soft glow
Streak
a long, thin line
Cleavage
rock seperation
Fracture
crack in a rock
density
how squeezed together matter is
Ore
a large amount of minerals
metallic minerals
nickel (pentlandite), copper (chalcopyrite), zinc (sphalerite), lead (galena) and gold
non metallic minerals
sand, gravel, stone, clay, and refractory materials
gemstones
a piece of mineral crystal
igneous rocks
cooled magma
sedimentary rock
are formed by layers of minerals
metamorphic rock
are created by the physical or chemical alteration by heat and pressure