Citation: Bertolo, S.; Nimis, P.; Dal Negro, A. (1994). Low-Ca augite from experimental alkali basalt at 18 kbar: Structural variation near the miscibility gap Atomic parameters from ICSD. American Mineralogist, 79, pp. 668-674.
Formula: Ca0.774 Fe0.11 Mg0.901 Na0.226 O6 Si2
Cell parameters:
a = 9.689 Å
b = 8.824 Å
c = 5.280 Å
α = 90°
β = 107.60°
γ = 90°
List type: noninterleaving
List: 3D
Combined 3D structure and graph
span 1{1 1 1}
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Linear Graph Knot
Molecules
CIF datablock 0, entity 1 of 1
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Ca4 Fe8 Mg4 Na4 O24 Si8 (Ca Fe2 Mg Na O6 Si2)