Glauconit

Structural context

Glauconite
Crystal System monoclinic

Chemical context

Stoichiometric formulas

Glauconite
mindat.org
  • Sept. 12, 2023K0.60-0.85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
  • April 10, 2023K0.6-0·85(Fe3+,Mg,Al)2(Si,Al)4O10](OH)2
  • March 13, 2023(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2

Physical properties

ColorColor entities, recognized using a custom trained NER model
  • blue-green
  • yellow-green
  • colorless
Color noteOriginal color note from the source
Blue-green, yellow-green, green, rarely colorless.
StreakStreak entities, recognized using a custom trained NER model
Streak noteOriginal streak note from the source
None
Lustre
Dull
Earthy
Fracture
Micaceous
Transparency
Translucent
Opaque
Tenacity
elastic
Hardness
2
Measured density
2.4—2.95
Calculated density
2.9