Minerals
B. Define Streak
A. it was once alive
B. The color of powder that a mineral leaves behind on a piece of unglazed porcelain
Inside: Instrusive
This sedimentary rock forms when minerals dissolve in water, then crystallize out of the solution, such as seawater.
What formation process is required to change any rock into a metamorphic rock?
The following characteristics describe which type of rock?
glassy, lava flow, porphyritic, vesicular, intrusive
A. Talc (hardness of 1)
B. Diamond (hardness of 10)
C. Topaz (hardness of 8)
D. Feldspar (hardness of 6)
C. Topaz (hardness of 8)
What formation process is required to change any rock into an igneous rock?
Melting, cooling, and solidifying
This sedimentary rock forms when sediments of rocks are compacted together then cemented by minerals.
When the minerals of metamorphic rocks are stretched into bands, this is called...
Calcite forms in a hexagonal geometric shape. Which mineral characteristic does this refer to?
crystalline structure/system
lava reaches the earth's surface while magma stays underground.
This sedimentary rock often forms in areas that are swampy with decayed plant matter.
The following characteristics describe which type of rock?
dull, fossils, rock pieces, strata
Minerals are naturally occurring, inorganic solids with a crystal structure and a definite chemical composition.
Extrusive igneous rocks form ____________ Earth's surface, cool___________, have___________grains, and ___________ crystals.
Intrusive igneous rocks form ____________ Earth's surface, cool______________, and have____________grains, , and ___________ crystals.
Instrusive: form below Earth's surface, cools slowly, has coarse grains, and large crystals.
B. Where are most sedimentary rocks found?
B. Along the surface of the Earth.
B. What are the two types of metamorphic rocks?
B. foliated and nonfoliated
The following characteristics describe which type of rock?
foliation, index minerals
B. What are rocks made out of?
B. Minerals
The two characteristics of Felsic rocks are:
1.
2.
The two characteristics of Mafic rocks are:
1.
2.
Felsic: light color and low density
Mafic: dark color and high density
What does WEDCC stand for?
Also, include a geological description of each step.
W-weathering: rocks broken into sediments by ice, plants, acid rain, animals, etc.
E-erosion: sediments are transported by wind or water
D-deposition: sediments are dropped somewhere new
C-compaction: sediments layer on top of one another and are squeezed together
C-cementation: sediments are glued together by mud, plant remains, and gravity.
*Weathing, erosion, and deposition are necessary for sedimentary rocks to form
their mineral grains are arranged in parallel layers or bands