Which of the following best describes an aphanitic texture?
A) The rock is crystalline; mineral grains are too small to be visible without a magnifying lens or microscope.
B) The mineral grains have glassy textures.
C) The rock consists of broken, volcanic-rock and mineral fragments.
D) The rock is crystalline; mineral grains are of distinctly different sizes.
Correct Answer:
Verified
Q46: Match the description with the appropriate texture.
-_
Q47: What are vesicles?
A)open voids in an igneous
Q48: Rocks that consist completely of disordered ions
Q49: The size, shape, and geometric arrangement of
Q50: Lava flows are typically finer grained than
Q52: Match the description with the appropriate texture.
-_
Q53: Name the texture that requires a magnifying
Q54: A(n)_ texture would be most unlikely to
Q55: Which igneous texture indicates two, distinctly different
Q56: Vesicles are _.
A)cavities or bubble-shaped holes formed
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