Minerals 1
A test to see how hard a mineral is
What is the scratch test
The weight of exactly 1 cubic centimeter of a substance
What is density
What molten rock is called when it forms intrusive rock
What is magma
Coal is an example of what kind of rock
What is organic sedimentary rock
This happens to large, underground areas of rock when tectonic plates collide
What is regional metamorphism
A test to see the color of a mineral when it is powdered
What is the Streak test
The most abundant group of minerals in the Earth’s crust
What are Silicates
What molten rock is called when it forms extrusive rock
What is lava
Layering of bits of rock fragments shows this characteristic
What is stratification
This is the slow, eternal process of the interconversions of one type of rock into another type of rock
What is the rock cycle
A test that shows how a mineral shatters
What is a breakage test
With a hardness of 7, this is the second most abundant mineral in the Earth’s crust
What is Quartz
The more slowly molten rock cools, the ever-larger these grow
What are mineral crystals
These features are the remains of or evidence of living organisms embedded in rock strata
What are fossils
What has to happen for a metamorphic rock to become an igneous rock
Intense heating to the melting point
When a mineral shatters, it can be in either of these two ways
What is cleavage or fracture
With a hardness of 1, this is the softest mineral
What is Talc
These fragments of other rocks get carried by wind and water
What are sediments
Rock which has been changed by heat and pressure
What is metamorphic rock
These processes convert igneous and metamorphic rocks into sedimentary rocks
What is weathering, erosion, and deposition
The way in which a mineral reflects light
What is Luster
This mineral with cubic cleavage is also known as rock salt
What is Halite
Fragments of other rocks accumulate and undergo compaction and cementation to form this
What is clastic sedimentary rock
This happens to rock underground when an intrusion moves in right next to it
What is contact metamorphism
Processes of this sort take place over and over again
What are cyclic processes