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Tourmaline: Quiz

  
  

Question 1: Tourmaline is classified as a ________ stone and the gem comes in a wide variety of colors.
QuartzDiamondGarnetGemstone

Question 2: ________, in particular granite and granite pegmatite and in metamorphic rocks such as schist and marble.
KomatiiteFelsicBasaltIgneous rock

Question 3:
What transport system is Tourmaline served by?

Question 4: Crystals may be green at one end and pink at the other, or green on the outside and pink inside: this type is called ________ tourmaline.
Chili pepperUnited StatesGarlicWatermelon

Question 5: What does the following picture show?

  Watermelon Tourmaline mineral on quartz matrix (crystal approximately 2 cm wide at face)
  Bi-colored tourmaline crystal, 0.8 inches long (2 cm).
  Large pink elbaite crystal on quartz, Cryo-Genie Mine, San Diego Co., California, USA.
  Black Dravite on a grey matrix

Question 6: [3] The word tourmaline has two etymologies, both from the Sinhalese word turamali, meaning "stone attracting ash" (a reference to its ________ properties) or according to other sources "mixed gemstones".
PyroelectricityLithiumGalliumPiezoelectricity

Question 7: Small slender prismatic crystals are common in a fine-grained ________ called aplite, often forming radial daisy-like patterns.
GraniteIgneous rockBasaltFelsic

Question 8: Usually, iron-rich tourmalines are black to bluish-black to deep brown, while magnesium-rich varieties are ________ to yellow, and lithium-rich tourmalines are almost any color: blue, green, red, yellow, pink etc.
BrownRust (color)Mahogany (color)Maroon (color)

Question 9: ________ became a large producer of tourmaline in the early 1900s.
San Jose, CaliforniaCaliforniaSacramento, CaliforniaLos Angeles

Question 10:
Tourmaline, Beryl and Cordierite are all:
Cyclosilicates Lithium minerals Borate minerals Iron minerals
















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