Citation: Reece, J.J.; Redfern, S.A.T.; Welch, M.D.; Henderson, C.M.B. (2000). Mn-Mg disordering in cummingtonite: a high-temperature neutron powder diffraction study. Mineralogical Magazine (1969-), 64, pp. 255-266.
Formula: Ca0.41 H2 Mg5.32 Mn1.14 Na0.13 O24 Si8
Chemical name: (Na0.13 Ca0.41 Mg0.45 Mn1.01) (Mg4.87 Mn0.13) Si8 O22 (O H)2
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Ca4 H4 Mg14 Mn8 Na4 O48 Si16 (Ca2 H2 Mg7 Mn4 Na2 O24 Si8)
Multiplicity: 1