Minerals
What's the name of the scale that measures the Hardness property?
Mohs
What are the 3 classes of rocks?
igneous, sedimentary, metamorphic
Define Luster
the way a mineral reflects light
I may look pink, white, or gray,
But color alone can mislead.
To truly identify me,
My powder is what you need.
streak
True or False: Ivory is a mineral. It is a hard, solid, white material that comes from the tusks, or teeth, of animals, usually elephants.
False
What two variables are required to convert sedimentary or igneous rock into metamorphic?
heat and pressure
the appearance of the freshly broken surface of a mineral.
fracture
You press me with force and heat,
But I never liquefy.
My minerals rearrange inside—
That’s how I modify.
methaphormism
Name the properties of all minerals
streak
hardness
color
reactivity
What four steps are necessary for a rock to break down and reform as sedimentary rock?
weathering
erosion
deposition
compaction
a substance that is found naturally in the Earth and that does not contain plant or animal matter. Gold is an example
mineral
Which type of rock was the first to exist on the planet?
igneous
Streak describes what property?
internal color
Shale forms as particles settle in slow-moving water.
What type of rock is shale?
sedimentary
minerals or organic matter carried and deposited by water or wind that may consolidate into rock.
sediment
Why do you need to run several tests before you can identify a mineral with 100% certainty?
many minerals share similar physical properties
When a mineral breaks in even patterns that's called?
cleavage
Which of the following would be a clue that a rock is igneous?
hot, molten rock below the Earth's surface. It is called lava when it erupts from a volcano.
magma
The most common type of rock on Earth is?
granite