Vibrational Essence
The iron-rich annite-siderophyllite endmember of the Biotite mica series, typically dark green to black. It's a grounding stone aiding in clear perception and organized thought.
Geological Blueprint
Wikipedia Research
Related Vibrations
Formula
KFe2+2Al(Al2Si2)O10(F,OH)2
Hardness (Mohs)
N/A
Crystal System
Monoclinic
Luster
Vitreous to dull
Streak
Greenish gray
Diaphaneity
Transparent to subopaque
Crystal Habit
Micaceous foliated; pseudohexagonal crystals