Tetragonal - Ditetragonal Dipyramidal Class (4/m 2/m 2/m) Mineral Species Listing
AXES
Synonyms: Normal Class, Zircon Type, Holohedral, or Ditetragonal Equatorial Class.
Space Groups in class: I4/mcm, I4/mmm, I41/acd, I41/amd, P4/mbm, P4/mcc, P4/mmm, P4/mnc, P4/nbm, P4/ncc, P4/nmm, P4/nnc, P42/mbc, P42/mcm, P42/mmc, P42/mnm, P42/nbc, P42/ncm, P42/nmc, and P42/nnm.
(* - Mineral Name is Not IMA Approved) (! - New Dana Classification Number Has Been Changed or Added) (? - IMA Discredited Mineral Species Name