 Question 1

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Question 1 1 out of 1 points What mineral was mined in a pegmatite near Wickenburg, AZ? Selected Answer: Lepidoli te Answers: Silver Gold Lepidoli te Peridot
Question 2 1 out of 1 points How do the crystals in pegmatites get so large?
Question 3 1 out of 1 points Geologists believe that peridotites form
in the upper mantle. near the inner core of the Earth when sea water mixes with magma, as in the Hawaiian volcanics. in space, from asteroids Question 4 1 out of 1 points The garnets in gabbro from Gore Mt., NY were used for
Question 5 1 out of 1 points In the picture of gabbro in the PowerPoint, which mineral has the bluish cast? Selected Answer: Labrador ite Answers: Turquois e Labrador ite Azurite Olivine
Question 6 1 out of 1 points What distinguishes a granite from a diorite ?
Question 7 1 out of 1 points What is a PHANERITE?

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