About Nontronite
An iron-rich clay mineral of the smectite group, typically green to yellowish. It's a nurturing and grounding stone, connecting with Earth energies and promoting emotional healing.
Primary Hues
Green, Yellowish-Green, Olive Green, Brownish-Green, often earthy
Geological & Scientific Details
Nontronite is classified as a phyllosilicates smectite group mineral which typically crystallizes in the monoclinic system. Its chemical formula is (CaO0.5,Na)0.3Fe3+2(Si,Al)4O10(OH)2·nH2O. Common crystal habits include earthy masses.
Key Geological Properties:
- Mineral Category: Phyllosilicates Smectite group
- Chemical Formula: (CaO0.5,Na)0.3Fe3+2(Si,Al)4O10(OH)2·nH2O
- IMA Symbol: Non[1]
- Crystal System: Monoclinic
- Predominant Geological Color: Yellow, olive-green, green, orange, brown
- Crystal Habit: Earthy masses
- Cleavage: Perfect basal
- Luster: Earthy to dull
- Streak: Colorless
Associated Minerals
- Smectite
- Montmorillonite
- Beidellite
- Saponite
- Hectorite
- Kaolinite
- Illite
- Quartz
- Opal