Gray-red altered benmoreitic lavas and other andesites crystallized from late-stage hydrothermal fluids.
IMA Status:
Approved IMA 1999 (Dana # Added)
Locality:
Etnean Volcanic Complex, Catania, Italy., Ishigamiyama lava dome of the Kimpo volcano, Kumamoto, southwest Japan. Link to MinDat.org Location Data.
Name Origin:
Named as the fluorine dominant member of the edenite series.