ASBOG FG Practice Test 5

10 free ASBOG FG practice questions in the real exam format, covering the official content areas, with an explanation for every answer.

ASBOG FG Practice Test 5Tutor mode

Question 1 of 10

Mineralogy, Petrology, and Geochemistry

A dark green to black, elongate mineral in a diorite shows two cleavages intersecting at about 56° and 124°. It is most likely: