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Olivine: Quiz

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More interesting facts on Olivine

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Question 1: Ultramafic rocks such as ________, and dunite can be residues left after extraction of magmas, and typically they are more enriched in olivine after extraction of partial melts.
BasaltIgneous rockPeridotiteKomatiite

Question 2: The tails of comets (which formed from the dust disk around the young Sun) often have the spectral signature of olivine, and the presence of olivine has recently been verified in samples of a comet from the ________.
Dawn (spacecraft)Robotic spacecraftDeep Impact (space mission)Stardust (spacecraft)

Question 3: Olivine incorporates only minor amounts of elements other than oxygen, silicon, magnesium, and ________.
CopperChromiumZincIron

Question 4: The metamorphism of impure ________ or other sedimentary rocks with high magnesium and low silica content also produces Mg-rich olivine, or forsterite.
MagnesiteCalciteCalcium carbonateDolomite

Question 5: It is also called chrysolite, from the Greek words for ________ and stone.
PlatinumGoldCopperSilver

Question 6: In contrast, Mg-rich olivine does not occur stably with ________ minerals, as it would react with them to form orthopyroxene ((Mg,Fe)2Si2O6).
OpalSilicon dioxideQuartzAmethyst

Question 7: ________ and nickel commonly are the additional elements present in highest concentrations.
ChromiumManganeseTitaniumZinc

Question 8: Olivine/peridot occurs in both mafic and ultramafic ________ and as a primary mineral in certain metamorphic rocks.
GraniteIgneous rockFelsicBasalt

Question 9: Some of the finest gem-quality olivine has been obtained from a body of mantle rocks on Zabargad island in the ________.
Indian OceanArctic OceanMediterranean SeaRed Sea

Question 10: It is one of the most common minerals on Earth, and has also been identified in meteorites[4] and on the Moon, ________,[5] and comet Wild 2.
MarsDeimos (moon)Water on MarsPhobos (moon)







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