gregoryite
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Gregoryite is an anhydrous carbonate mineral that is rich in potassium and sodium with the chemical formula . It is one of the two main ingredients of natrocarbonatite, found naturally in the lava of Ol Doinyo Lengai volcano of Arusha Region, Tanzania, and the other being nyerereite.
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- Nickel-Strunz 9th edition (updated 2009)
- 5.AA.10
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 5.AA.10
- IMA Mineral Symbol
- Ggy
- chemical formula
- Na₂(CO₃)
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Gregoryite is an anhydrous carbonate mineral that is rich in potassium and sodium with the chemical formula . It is one of the two main ingredients of natrocarbonatite, found naturally in the lava of Ol Doinyo Lengai volcano of Arusha Region, Tanzania, and the other being nyerereite.
Because of its anhydrous nature, gregoryite reacts quickly with the environment, causing the dark lava to be converted to white substance within hours.