Types Of Rocks
Rock Cycle
Sedimentary Rocks
Igneous Rocks
Minerals Properties
100
What are rocks that form when molten rock (magma or lava) cools and solidifies.
Igneous Rocks
100
What is quartz
Quartz is a hard, crystalline mineral composed of silica (silicon dioxide).
100
what type of sedimentary rock is a rock made of sandstone containing at least 25% feldspar.
Arkose
100
What is a gray to black volcanic rock with between about 52 and 63 weight percent silica (SiO2).
andesite
100
What property is the least reliable for mineral identification?
What is Color.
200
What are rocks that originate when particles settle out of water or air, or by precipitation of minerals from water.
Sedimentary Rocks
200
Any type of rock can become what kind or kinds of rock?
What is any kind.
200
What is a rock that is a lithified sedimentary rock consisting of angular or subangular fragments larger than 2 millimetres (0.08 inch).
Breccia
200
What is a dark-colored, fine-grained, igneous rock composed mainly of plagioclase and pyroxene minerals.
basalt
200
Is the color of the mineral it it's original form always the same as the color of it's powdered form when you test it's streak?
No, the streak can be a different color on the tile from it's original color. Example: Hemtatite
300
What are rocks that form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.
Metamorphic Rocks
300
Buried rock is brought to the earth's surface by what?
What is uplift.
300
What is a rock that is a fine-grained, noncrystalline sedimentary rock made up of silicon dioxide (SiO2).
Chert
300
What is a volcanic rock that may be considered a quartz-bearing variety of andesite.
dacite
300
Name two different descriptions of a non-metallic luster.
glassy, earthy & dull.
400
what are rocks that occur as a natural glass that is formed by the rapid cooling of viscous lava from volcanoes.
Obsidian Rocks
400
Grains of rock are removed from their source by what?
What is erosion.
400
What is a black or brownish-black sedimentary rock that can be burned for fuel and used to generate electricity.
Coal
400
What is pyroclastic igneous rock that was almost completely liquid at the moment of effusion and was so rapidly cooled that there was no time for it to crystallize.
pumice
400
Using the image:
Volume on the left is 20.0 mL & on the right is 22.8 mL. What is the volume of the object?
What is 2.8 mL
500
What is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption.
Tuff
500
Water, wind, heat and ice break down rocks by what process?
What is weathering.
500
What is a common rock-forming mineral. It is a calcium magnesium carbonate with a chemical composition of CaMg(CO3)2.
Dolomite
500
What is a felsic extrusive rock. Due to the high silica content, rhyolite lava is very viscous.
rhyolite
500
which minerals can scratch a steel file but can be scratched by window glass?
What is Quartz and Orthoclase.