Which of the following axis system is being satisfied by the hexagonal crystal system?
The hexagonal crystal system has four crystallographic axes. Three of the four axes are in one plane, intercept at 120°, and are of the same length. The fourth is either longer or shorter but must be at a right angle toward the other corners. In brief,
α = β = 90°, γ = 120° and a = b ≠ c axis system is being satisfied by the hexagonal crystal system