Crystal Structures of Rb- and Ag-Substituted Forms of Natural Zeolite Amicite
作者： V. N. Ermolaeva , N. V. Chukanov , N. V. Chukanov , D. A. Varlamov , O. N. Kazheva
DOI: 10.1134/S1063774521010089
关键词:
摘要: The crystal structures of ion-exchange products of the zeolite-group mineral amicite from Khibiny Alkaline Massif with silver and rubidium salts have been studied. The investigated samples are monoclinic (sp. gr. P 2 1 and I 2/a); their crystallochemical formulas (Z= 1) are Ag 8 (Al 8 Si 8 O 32)⋅ 10.6 H 2 O and K 0.4 Na 0.7 Rb 6.9 (Al 8 Si 8 O 32)⋅ 4.5 H 2 O; the unit cell parameters are a= 9.272 (2) and 10.043 (2) Å, b= 9.997 (2) and 9.748 (2) Å, c= 10.380 (3) and 10.265 (2) Å, β= 90.821 (8)° and 90.09 (3)°, V= 962.0 (4) and 1005.0 (3) Å 3 …
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