In different specimens of the same type of mineral the interfacial angles between crystal faces are
A) greater than 90 degrees.
B) less than 90 degrees.
C) identical.
D) zero.

Question

Quizplus · Accepted Answer

The interfacial angles between crystal faces in different specimens of the same type of mineral are identical because the mineral has a specific internal arrangement of atoms that determines the angle between the crystal faces. This angle remains constant regardless of the size or shape of the individual crystal specimen.

In Different Specimens of the Same Type of Mineral the Interfacial