格碳鈉石
格碳鈉石(英語:)是一種無水碳酸鹽礦物,富含鉀和鈉 [1]。 化學式為(Na2,K2,Ca)CO3[2][3][4]。它是鈉碳酸鹽的兩種主要成分之一,在Ol Doinyo Lengai 火山的熔岩中被發現過,另一種是尼雷爾石[5]。 由於其無水性質,格碳鈉石與環境迅速反應,導致深色熔岩在數小時內轉化為白色物質[1]。
1980 年格碳鈉石首次被發現,並以研究東非大裂谷的英國地質學家和作家 John Walter Gregory (1864–1932) 的名字命名[2] [6]. 它與尼雷爾石、硫锰矿、石鹽、鉀鹽、螢石和方解石共生[7]。
参见
參考文獻
- "Gregoryite definition". Dictionary of Geology. Retrieved 2011-05-21
- Mindat.org
- Mitchell, Roger H.; Bruce A. Kjarsgaard (2010). "Experimental Studies of the System Na2CO3–CaCO3–MgF2 at 0•1 GPa: Implications for the Differentiation and Low-temperature Crystallization of Natrocarbonatite". Journal of Petrology. Oxford Journals. 52 (7–8): 1265–1280. doi:10.1093/petrology/egq069.
- Hay, Richard L (1989). "Holocene carbonatite-nephelinite tephra deposits of Oldoinyo Lengai, Tanzania". Journal of Volcanology and Geothermal Research. Elsevier (Netherlands). 37 (1): 77–91. Bibcode:1989JVGR...37...77H. doi:10.1016/0377-0273(89)90114-5.
- World's Coolest Lava is in Africa". Volcano Watch. USGS Hawaiian Volcano Watch. Retrieved 2011-05-21.
- Webmineral.com
- Handbook of Mineralogy
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