Online Encyclopedia

DITETRAGONAL PYRAMIDAL

Online Encyclopedia
Originally appearing in Volume V07, Page 577 of the 1911 Encyclopedia Britannica.
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DITETRAGONAL PYRAMIDAL  CLASS (

See also:
Hemimorphic-hemihedral) . Here there are two pairs of
See also:
vertical planes of symmetry intersecting in the tetrad
See also:
axis . The pyramids {hhll and lhol} and the bipyramid {hkl} are all hemimorphic . Examples are iodosuccimide (C 4H 402N I) ,
See also:
silver fluoride (AgF .H20) , and penta-
See also:
erythrite (C&H12O4) . No examples are known amongst minerals .

End of Article: DITETRAGONAL PYRAMIDAL
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DISTYLE (from Gr. &-, two, and rrOXos, column) 		[next]
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