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Quartz: Quiz

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More interesting facts on Quartz

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Question 1: Roman naturalist ________ believed quartz to be water ice, permanently frozen after great lengths of time.
CastraRoman NavyRoman EmpirePliny the Elder

Question 2: Lechatelierite is an ________ silica glass SiO2 which is formed by lightning strikes in quartz sand.
Amorphous solidGlass transitionSolidLiquid

Question 3: In crystal form (rarely found) it is called pink quartz and its color is thought to be caused by trace amounts of phosphate or ________.
CopperAluminiumGoldTitanium

Question 4: In the 17th century, ________'s study of quartz paved the way for modern crystallography.
ItalyDenmarkGottfried LeibnizNicolas Steno

Question 5: Quartz crystals have piezoelectric properties; they develop an electric potential upon the application of ________.
Stress (mechanics)Linear elasticityHooke's lawContinuum mechanics

Question 6: Quartz belongs to the trigonal ________.
Space groupCubic crystal systemCrystal systemMonoclinic crystal system

Question 7: What does the following picture show?

  Quartz crystal showing transparency
  Amethyst. Magaliesburg, South Africa
  Fatimid carved rock crystal (clear quartz) vase, c. 1000
  Citrine

Question 8: What does the following picture show?

  An elephant carved in rose quartz, 4 inches (10 cm) long
  A synthetic quartz crystal grown by the hydrothermal method, about 19 cm long and weighing about 127 grams
  Milky quartz sample
  Fatimid carved rock crystal (clear quartz) vase, c. 1000

Question 9: What does the following picture show?

  Smoky quartz
  Ancient Roman cameo onyx engraved gem of Augustus
  Ancient Roman cameo onyx engraved gem of Augustus
  An elephant carved in rose quartz, 4 inches (10 cm) long

Question 10: ________ is the leading producer of citrine, with much of its production coming from the state of Rio Grande do Sul.
East TimorBrazilMozambiquePortugal







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