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Author Question: What is the name of an aphanitic rock consisting of 50 pyroxene, 20 plagioclase feldspar, 20 ... (Read 68 times)

ssal

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on: Jul 15, 2018

What is the name of an aphanitic rock consisting of 50 pyroxene, 20 plagioclase feldspar, 20
  olivine and 10 hornblende?
  a. Andesite
  b. Basalt
  c. Gabbro
  d. Diorite
  e. Granite



Question 2

Which property of minerals is variable and therefore the least reliable as a clue in identifying a mineral
  type?
  a. color
  b. cleavage
  c. hardness
  d. crystal form
  e. luster



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bpool94

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Reply #1 on: Jul 15, 2018
Answer to Question 1

B

Answer to Question 2

A


ssal

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Reply 2 on: Jul 15, 2018
Excellent

kusterl

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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