Orthorhombic - Dipyramidal Class (2/m 2/m 2/m) Mineral Species Listing
AXES
Synonyms: Normal Class, Barite Type, Holohedral, or Didigonal Equatorial Class.
Space Groups in class: Ccca, Cccm, Cmca, Cmcm, Cmma, Cmmm, Fddd, Fmmm, Ibam, Ibca, Imma, Immm, Pbam, Pban, Pbca, Pbcm, Pbcn, Pcca, Pccm, Pccn, Pmma, Pmmm, Pmmn, Pmna, Pnma, Pnna, Pnnm, and Pnnn.
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(* - Mineral Name is Not IMA Approved) (! - New Dana Classification Number Has Been Changed or Added) (? - IMA Discredited Mineral Species Name