Trigonal - Rhombohedral Class (3) Mineral Species Listing
AXES
Synonyms: Tri-Rhombohedral Class, Phenacite Type, Rhombohedral Tetartohedral, or Hexagonal Alternating Class.
Space Groups in class: P3 and R3.
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(* - Mineral Name is Not IMA Approved) (! - New Dana Classification Number Has Been Changed or Added) (? - IMA Discredited Mineral Species Name