BULL. GEOL. SOC. AM. 



CLASSES 



3 SINGULAR OIRI 



TRICLINIC 



-2 FOLD 



MONOCUNK 



C5 

 CO 



AXIAL 



ONE AXIS 





PYRAMIDAL HEMIMQRf 



ORTHOAX I AL 



PLANE NORMAL TO AXIS 



y 



PYRAMIDAL 



P L Y A X I A L 



MANY A XES 



AM E B A X I A L 



ALTERNATING AXIS 



PYRAMIDAL 



C3 



go 



HEDR AL 



PiANES INTERSECTING IN ON£ AXIS 



q: 



ORTHOHEDRAL 



PLANES COINCIDING WITH AXES 



AM E BAH ED R AL 



PLANES ALTERNATING WITH AXES 



CLASS 



