Rocks of earths surface Flashcards
crystal
minerals that are made up of atoms in a repeating pattern
density
a measurement of how light or heavy an object is for its size
hardness
a measure of how easily a mineral can be scratched
homogeneous
a substance or mixture that has the same properties and chemical composition
luster
they way a minerals surface reflects light
mass
the amount of substance
mineral
a naturally formed crystal
streak
the color of a material’s powder. you ca observe the streak by rubbing the mineral across a title called a “ streak plate”
volume
the amount of space and object takes
metamorphism
minerals in rock change
compaction
layers squeeze together and water is forced out
cementation
cemented together by clay or minerals
what do rocks depend on to change?
shape, heat, pressure, time
magma
molten material
erosion
movement of particles
