Part III Flashcards
(22 cards)
What is the rock cycle?
The cycle in which rocks are processed and formed.
What are the three types of rocks?
Igneous
Sedimentary
Metamorphic
Define rocks.
A mixture of rocks, minerals and organic matter
What is described when we talk about the rocks’ texture?
The way rocks look.
What type of rocks are formed by deposition of either clastic sediments, organic matter or chemical precipitates, followed by compaction of the particulates and cementation?
Sedimentary Rock
In what type of rocks are fossils found?
Sedimentary
What is the difference between lava and magma?
lava is on the surface, magma is inside the crust.
What are igneous rocks?
rocks formed from lava
What are the types of igneous rocks?
Intrusive
Extrusive
How are metamorphic rocks formed?
heat and pressure
What are the types of metamorphic rocks?
foliated and non-foliated
How are sedimentary rocks formed?
they get crushed from pressure
What are the types of sedimentary rocks?
clastic
chemical
organic
What is weathering?
breakdown of rocks from weather
What is erosion?
rocks are relocated
What processes take place in the formation of sedimentary rocks?
weathering erosion deposition compaction cementation
What is a mineral?
a rock formed naturally underground
What is the difference between a metal, a gemstone and an ore?
metal - sediment
gemstone - igneous
ore - metamorphic
What are the five characteristics that define a mineral? (Characteristics NOT properties)
Naturally Occurring Solid Inorganic Fixed Chemical Formula Atoms (Ordered Internal Structure)
What is a mineral’s streak?
The color of a mineral in powder
Define the mineral’s crystal structure.
How its atoms are shaped
What is the mineral’s luster?
the color of the mineral itself in light.
