Mineral Characteristics
What is something that cannot be broken down into a simpler substance
Element
What do you call the color of the powder left behind when the mineral is scraped across a surface?
Streak
_____ is found below the earths surface while ____ is a molten rock found above earths surface
Magma, Lava
Metamorphism is the process by which a rocks structure or mineral makeup is ______
Changed
What is the process by which sedimentary rocks are formed
weathering and erosion
What is a substance formed in nature inorganic is a solid has a definite chemical makeup and had a crystal structure
Mineral
What do you call the tendency of a mineral to break along flat surfaces
Cleavage
Igneous rocks are classified based on two things. What are they?
Mineral crystal size and mineral composition
________ develops when rocks are under pressure and develop when minerals flatten out or line up in bands
Foliated
Small particles of sediment may form into rocks by pressure alone such as ______ and ______
Silt and Clay
What is a solid substance in which the atoms are arranged in an orderly repeating three dimensional pattern
Crystal
What is the way in which light reflects from its surface (metallic - shiny and nonmetallic - dull
Luster
Rocks found below the earths surface and take a while to cool have _____ size crystals
Large
At low levels of metamorphism bands are extremely thin as in _____
Slate
Rocks held together by pressure are cemented by what
Minerals
Minerals have ____ characteristics while rocks have ___
5,2
The moss scale ranges is from 1 soft to a 10 hard _____ is an example of a 1 and a _____ a 10
Talc, Diamond
_____ rocks reach earths surface, have small crystals and had less time to cool
Extrusive
Some metamorphic rocks do not show foliation and are called non foliated rocks because what?
Not under high pressure
What has dead wood bark leaves stems and roots forming from plants instead of earlier rocks forming millions of years ago in swamps
Coal
All minerals have the following except what
Formed by man
A few minerals strongly attract what?
Magnets
What is the composition of most igneous rocks
silicates
Marble and quartzite are examples of what
Non foliated
Sedimentary rocks are laid down in layers. The ______ layers are on the top.
Youngest