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Mineral contains: agrellite
Fleischer M, Mandarino J A (1977) New mineral names. American Mineralogist 62, 173-176
Ghose S, Wan C (1979) Agrellite, Na (Ca, RE)2Si4O10F: a layer structure with silicate tubes. American Mineralogist 64, 563-572
Gittins J, Bown M G, Sturman D (1976) Agrellite, a new rock-forming mineral in regionally metamorphosed agpaitic alkalic rocks. The Canadian Mineralogist 14, 120-126
Rozhdestvenskaya I V, Nikishova L V (1998) Crystal structure of Na(Ca,Sr)2Si4O10F strontium agrellite from Yakutian charoitites: agrellite polytypes. Crystallography Reports 43, 589-597
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