Trona
Mineral Na3(CO3)(HCO3)·2H2O
Take care.
- Damaged by water: Keep it dry: don't wash it, and keep it out of damp places.
About it
White to grey fibrous or columnar masses that dissolve readily in water, from dried-up soda lakes. Huge beds in Wyoming's Green River Basin are mined for soda ash; also found at Searles Lake, California.
- Type
- Mineral
- Group
- Carbonate
- Formula
- Na3(CO3)(HCO3)·2H2O
- Hardness (Mohs)
- 2.5–3
- Specific gravity
- 2.11–2.17
- Streak
- white
- Lustre
- vitreous (glassy)
- Crystal system
- Monoclinic
- Colours
- colourless, white, grey, yellowish
- Transparency
- transparent, translucent
- Cleavage and fracture
- perfect in one direction
Typical values: real specimens vary. For more, see mindat.org.