Crystal structure of (K_1.5Na_0.5)Ca₃Si₃O₁₀.

ABSTRACT: Single crystals of (K_1.52Na_0.48)Ca₃Si₃O₁₀ [idealized (K_1.5Na_0.5)Ca₃Si₃O₁₀, di(pot-assium, sodium) tricalcium tris-ilicate], were obtained from the crystallization of a glass with a molar oxide ratio of K₂O:Na₂O:CaO:SiO₂ = 1.5:0.5:6:6 that was annealed at 1273 K. The crystal structure can be characterized as a mixed-anion oxidosilicate with isolated [SiO₄] tetra-hedra as well as [Si₄O₁₂] vierer single rings. The insular and cyclic silicate anions occur in the ratio 2:1, resulting in the idealized crystallochemical formula K₃NaCa₆[SiO₄]₂[Si₄O₁₂].

SUBMITTER: Kahlenberg V 

PROVIDER: S-EPMC9260351 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature