Volcanoes/Volcanic minerals/Quiz

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This image is a visual close up of green sand which is actually olivine crystals that have been eroded from lava rocks. Credit: Brocken Inaglory.

Volcanic minerals is a lecture about minerals that occur in, on, around and between volcanic rocks. It is a volcanoes lecture offered by the radiation astronomy department and the school of geology.

You are free to take this quiz based on volcanic minerals at any time.

To improve your score, read and study the lecture, the links contained within, listed under See also, External links, and in the {{radiation astronomy resources}} and the {{geology resources}} templates. This should give you adequate background to get 100 %.

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Quiz[edit | edit source]


1 Yes or No, Forsterite is associated with igneous and metamorphic rocks and has also been found in meteorites.


2 Which chemical phenomenon are associated with the Earth?

quartz is the second most abundant mineral
an atmosphere containing CO2
green, red, blue, and yellow airglow
the production and escape of hot H+ ions
oxygen emissions
helium ions

3 Yes or No, The pyroxenes are a group of important rock-forming inosilicate minerals found in many igneous and metamorphic rocks.


4 With respect to protoplanetary disks what green mineral has been found?

5 True or False, Coesite and stishovite can only be formed by intense pressure, but moderate temperatures.


6 Observations of Io have benefited greatly from what phenomenon?

a dense, opaque atmosphere
extensive meteorite cratering
a flattening out
liquid hydrocarbon lakes
the reflected light of allotropes and compounds of sulfur

7 Moldavite is a mineral that may be associated with what green astronomy phenomenon?

predicting the end of the Earth
determine the accuracy of local computers
meteorite impacts
demonstrating that Venus was once a comet
predict when currently dormant volcanoes will erupt
green fireballs

8 Which of the following are associated with greenstone belts?

metamorphosed mafic sequences
ultramafic volcanic sequences
Archaean and Proterozoic cratons
Humphreys series
Rydberg series
green hue of metamorphic minerals

9 True or False, A plume of water ice particles emanating from Enceladus is reaching altitudes as high as 400 km above the surface.


10 A terrestrial planet is composed primarily of?

11 True or False, The XRS aboard the MESSENGER spacecraft maps mineral composition.


12 Complete the text:

At its effective temperature of 1250 K, the atmosphere of the extrasolar planet 51 Pegasus B has clouds composed of



13 Yes or No, Fluorapatite occurs widely as an accessory mineral in igneous rocks and in calcium rich metamorphic rocks.


14 Soil samples from the mare of the Moon reflect primarily cyan due to the presence in the soils of what?

15 Yes or No, Tanzanite is found only in the foothills of Mount Kilimanjaro.


16 Phenomena associated with some meteorites?

have a gaseous surface
long nickel-iron crystals

17 Yes or No, Blueschist is a metavolcanic rock that forms by the metamorphism of basalt and rocks.


18 Purpurite is a natural mineral pigment composed of what likely source of violet or purple?

19 Yes or No, Hauyne, haüyne or hauynite occurs in Vesuvian lavas in Monte Somma, Italy.


20 True or False, Cubanite occurs in high temperature hydrothermal deposits with pyrrhotite and pentlandite as intergrowths with chalcopyrite.


21 Red ochre is a natural pigment composed of what likely source of red?

22 Yes or No, Microlite is a mineral in the pyrochlore group that occurs in pegmatites and constitutes an ore of tantalum.


23 Which of the following is involved in planetary astronomy more so than planetary science?

the occurrence of cyan rock types on the surface of rocky objects
the Earth and other rocky objects have a cyan mineral containing mantle
checking equations about complex systems
the advantages of a 490 nm band pass
digging holes in the surface of the Moon
surface temperatures low enough to produce methane lakes

24 Yes or No, Orpiment is an orange to yellow mineral that is found worldwide on Earth, and occurs as a sublimation product in volcanic fumaroles, low temperature hydrothermal veins, hot springs and as a byproduct of the decay of another arsenic mineral, realgar.


25 Silicates occur as part of the rocky surface beneath a visually opaque cloud layer on what planet?

26 Orpiment is a natural mineral pigment composed of what likely source of orange?

27 True or False, Optical reflectance studies of Mercury provide evidence for Mg silicates.


28 Which of the following are radiation astronomy phenomena associated with the apparent liquid-object Earth?

neutron emission
polar coronal holes
meteor emission

29 True or False, Water ice has been detected on the surface of an asteroid.


30 Which of the following is not a radiation phenomenon associated with a crater?

elongated dust particles
high albedo

31 Yes or No, Breithauptite occurs in hydrothermal calcite veins associated with cobalt–nickel–silver ores.


Hypotheses[edit | edit source]

  1. Most of the colorful minerals found on Earth do not seem to occur anywhere else.

See also[edit | edit source]

External links[edit | edit source]

{{Radiation astronomy resources}}