dixenite

dixenite

[′dik·sə‚nīt]
(mineralogy)
Mn5(SiO3)(AsO3)(OH)2 A black hexagonal mineral consisting of a manganese arsenite and silicate, occurring in scales.
References in periodicals archive ?
The mineral was found on a museum specimen, previously labeled as dixenite, from L[dot{a}]ngban, V[ddot{a}]rmland, Sweden, and occurs on one surface as red-brown to orange-brown aggregates of micaceous plates.
It is a portion of a larger specimen (BM1921, 310) which was labeled as dixenite from L[dot{a}]ngban, V[ddot{a}]rmland, Sweden, and was initially acquired by the museum in 1921 from Mr.
Araki, in close collaboration with Professor Paul Moore, solved the structures of many complex P-bearing and As-bearing phases, including those of hematolite and dixenite. The mineral and mineral name have been approved by the Commission on New Minerals and Mineral Names, I.M.A.
However, strong 00l reflections at 12.07, 6.046, 4.040 and the strong reflection at I.552 [dot{A}] are comparable, in both intensity and spacing, to those diffraction lines published for both hematolite and dixenite and, additionally, to the unnamed [Fe.sup.3+] analogue of hematolite (Dunn and Peacor, 1983) and to the unnamed L[dot{a}]ngban arsenate of Roberts and Dunn (1988).