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pointgroups

forms

1

1

c pinacoid

+ -

a pinacoid

+ -

b pinacoid

+ -

3d order pinacoid

+ -

2nd order pinacoid

+ -

1st order pinacoid

+ -

4th order pinacoid

+ -

c pedion

- +

a pedion

- +

b pedion

- +

3d order pedion

- +

2nd order pedion

- +

1st order pedion

- +

4th order pedion

- +