About Augite
A common rock-forming clinopyroxene mineral, typically black or dark green. It's a grounding stone that helps release negativity, promote emotional stability, and foster practical problem-solving.
Primary Hues
Black, Brownish-Green, Greenish-Black, Brown
Geological & Scientific Details
Augite is classified as a inosilicates mineral which typically crystallizes in the monoclinic system. Its chemical formula is (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6. Common crystal habits include commonly as stubby prismatic crystals, also acicular, skeletal, dendritic.
Key Geological Properties:
- Mineral Category: Inosilicates
- Chemical Formula: (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6
- IMA Symbol: Aug[1]
- Crystal System: Monoclinic
- Predominant Geological Color: Black, brown, greenish, violet-brown; in thin section, colorless to gray with zoning common
- Crystal Habit: Commonly as stubby prismatic crystals, also acicular, skeletal, dendritic
- Twinning: Simple or multiple on {100} and {001}
- Cleavage: {110} good with 87° between {110} and {110}; parting on {100} and {010}
- Luster: Vitreous, resinous to dull
- Streak: Greenish-white
- Diaphaneity: Transparent to opaque