Trona | Sodium Sulfate, Natural Deposit & Uses | Britannica
https://www.britannica.com/science/trona
WEBTrona, an evaporite mineral, hydrated sodium bicarbonate [Na3H (CO3)2·2H2O], occasionally encountered as a saline lake deposit or evaporation product and as an efflorescence on arid soil. Usually associated with natron, thermonatrite, halite, and gypsum, it occurs near Memphis, in the Lower Nile.
DA: 35 PA: 64 MOZ Rank: 100