A student found a rock in the desert that was mixed with clay, gravel, and sand. What type of rock did the student find?
Sedimentary
True or False: Rocks are made up of minerals.
True
These substances make up the composition of rocks.
What are minerals?
All types of rocks are classified by this
What is their origin / how they form?
These processes occur in order to create sediments
What are weathering and erosion?
This test is the most useful test when identifying minerals
What is hardness?
This test is used by scratching a mineral on another object
What is the Hardness test?
This is the most useful way to identify a clastic sedimentary rock
What is grain size?
These types of rocks can contain vesicular textures
What are igneous rocks?
This process occurs to create igneous rocks
What is the solidification of magma?
This test by scratching a mineral on a porcelain plate and examining the powder's color, as shown in the picture.
What is streak?
This test is the least reliable when determining a mineral
What is color?
Igneous rocks that form within the Earth are classified as this
What is intrusive?
What steps would a scientist need, to change a metamorphic rock into igneous rock?
What is melting and cooling of molten material?
Cementation and compaction are processes that create this rock
What is a Sedimentary?
This test can be used to identify calcite if other tests cannot distinguish it from another mineral
What is an acid test?
These substances make up the composition of minerals
What are elements?
This sedimentary rock is formed by the cementation of sea shells
What is limestone?
This type of rock is the only type that can contain fossils
What is sedimentary?
This process occurs to create magma
What is melting?
This type of rock typically has mineral alignment or banding.
What is metamorphic rocks?
This determines the physical and chemical properties of minerals
What is the internal arrangement of atoms?
This igneous rock is composed of only Olivine
What is Dunite?
Igneous rocks that are classified as mafic are rich in these two elements
What is Fe (iron) and Mg (Magnesium)?
These processes occur after sediments are created but before compaction and cementation
What are deposition and burial?