About Mirabilite
Hydrated sodium sulfate, forming colorless to white crystals that dehydrate in air; water-soluble. It's associated with cleansing, purification, and emotional release. (Historically used as a laxative).
Primary Hues
Colorless, White, often forms efflorescent crusts (dehydrates in dry air)
Geological & Scientific Details
Mirabilite is classified as a sulfate minerals mineral which typically crystallizes in the monoclinic system. Its chemical formula is Na2SO4·10H2O. Common crystal habits include granular or well-formed coarse crystals.
Key Geological Properties:
- Mineral Category: Sulfate minerals
- Chemical Formula: Na2SO4·10H2O
- IMA Symbol: Mrb[1]
- Crystal System: Monoclinic
- Formula Mass (g/mol): 322.9 g/mol
- Predominant Geological Color: Colorless, white, yellowish-white, greenish-white
- Crystal Habit: Granular or well-formed coarse crystals
- Twinning: Interpenetration twinning on {001}; also on {100}
- Cleavage: {100} perfect, {001} poor, {010} poor
- Luster: Vitreous
- Streak: White
- Diaphaneity: Transparent to translucent to opaque
Associated Minerals
- Thenardite
- Gypsum
- Halite
- Epsomite
- Bloedite