Minerals and Rocks Flashcards
the study of minerals
MINERALOGY
building blocks of rocks, naturally formed
MINERALS
Define Color
It is the result of the way minerals absorb light.
the color of the mineral in powder form
Streak
color of the powder in streak
Streak
refers to the measure of the mineral’s resistance to scratching
Hardness
It determines how brilliant or dull the mineral is
Luster
What are the categories of Luster? Define.
Metallic - light does not penetrate but only reflects
Non- Metallic - light does penetrate
both describe how a mineral breaks
Cleavage and Fracture
rough or irregular surfaces
Fracture
refers to flat planes
Cleavage
measurement that determines the density of minerals
Specific Gravity
the ability of a mineral to attract or repel other minerals
Magnetism
Tenacity
level of resistance of minerals to stress
aggregates of one or more minerals
Rocks
What are the 3 classification of Rocks
Igneous Rocks, Metamorphic Rocks, Sedimentary Rocks
formed by magma
IGNEOUS ROCKS
formed by the settling down of sediments
Sedimentary Rocks
What is the Formation of Sedimentary Rocks. Define each.
Erosion- particles carried away by wind or water
Deposition - losely packed sediments
Compaction - closely packed sediments Cementation - tightly packed sediments
rocks that undergo a change to form a new rock
METAMORPHIC ROCKS
minerals that contain iron
ferrous metallic minerals
