Minerals
Is water a mineral, why or why not?
No, because the definition of a mineral includes being a solid, not a liquid.
This sedimentary rock is composed of particles that are 0.1 cm and are made of quartz and feldspar crystals.
Sandstone
The igneous rock pumice has this type of texture and this type of composition. Pumice has a density of 0.9. What does this mean if a piece of it was found in a river?
Glassy texture and felsic composition. It would float.
This foliated metamorphic rock has the highest grade of metamorphism?
Gneiss
True or false: You can find an igneous rock inside a sedimentary rock.
True.
This mineral contains Magnesium and Iron, has a hardness of 6.5 and is often found in the igneous rock Gabbro.
Olivine
Sedimentary rocks are classified based on grain size. What is one similarity between sedimentary rocks and igneous rocks?
Answers vary based on group
What percentage of SiO2 is found in this mafic, course grained igneous rock?
Which type of metamorphism would most likely happen at location A based on the diagram on the board?
Regional metamorphism
What layer of the Earth are all solid rocks found?
Crust.
This is the only mineral on your chart that will scratch the mineral that is predominantly found in felsic igneous rocks.
Garnet
A student finds a rock with angular fragments at the base of a river bed surrounded by rounder rock fragments. Explain why this doesn't make sense or how this could have happened?
Answers vary
This igneous rock is composed entirely of olivine. What is the name of the igneous rock and what is olivine's mineral formula and did it form in the ground or above the ground from magma or lava?
Dunite, (Fe,Mg)2SiO4 and formed intrusively from magma
What is the name of the metamorphic rock that is fine grained, and is composed of a mineral often found in very mafic rocks?
Schist
List the planets in order starting from the sun.
Mercury, venus, earth, mars, jupiter, saturn, uranus, neptune
There are two minerals that can be pealed easily into thin pieces. Name the darker one and if it can be found in felsic, intermediate, or mafic igneous rocks.
Biotite mica, can be found in all three.
Draw a picture or explain how the minerals gypsum or halite form.
Saturated water floods in, evaporates and deposits minerals, repeats.
Name two differences and one similarity between Scoria and Gneiss.
Answers vary.
This metamorphic rock is composed of particles greater than 0.2 cm that were cemented and compacted together.
Metaconglomerate.
Which rock would form closer to the base of a volcano and which rock would form furthest from a volcano: andesite and obsidian. Explain.
Andesite = closer
Obsidian = further
Explain why pyroxene can be considered an intermediate and a mafic mineral using specific elements in your response.
Could be intermediate because it has Aluminum and Silicon in it. Could be mafic because it has Iron and Magnesium in it.
This rock is composed of the mineral calcite. What rock is it, and if you didn't have acid, how could you tell the difference between calcite and quartz.
Limestone, and calcite is much softer in terms of hardness.
Rank the following from coolest fastest to cooled slowest: Granite, pegmatite, basalt, scoria, obsidian.
Obsidian, scoria, basalt, granite, pegmatite.
Explain why the following statement is incorrect: Metamorphic minerals are completely different than sedimentary and igneous minerals. Provide and example to support your statement.
Answers vary
True or false. Pegmatite is an intrusive, felsic, low density, vesicular igneous rock and has minerals that can all be found in sedimentary rocks.
False. It is intrusive, felsic, low density, can be found in sedimentary rocks but is not vesicular.