Question
Geology Question on Mineralogy
Which one of the following symmetry elements is an INCORRECT representation of rotoinversion operation?
A
1A3+ inversion centre = 3̅
B
1A2 = 4̅
C
Mirror plane = 2̅
D
1A3/m = 6̅
Answer
1A2 = 4̅
Explanation
Solution
The correct option is (B): 1A2 = 4̅