User:Graeme Bartlett/dumortierite-like materials

The dumortierite-like materials or dumortierite group is a family of solid materials with identical or similar structure to the mineral dumortierite. Other minerals in the family are identical structure holtite and magnesiodumortierite; and ellenbergerite, phosphoellenbergerite, ekatite with similar structure with hexagonal symmetry.

Synthetic materials in the dumortierite structure include hydroxy selenites, hotroxofluorslenites

Zn11(HPO3)8(OH)6 18 Co11(HPO3)8(OH)6 Ni11(HPO3)8(OH)6 Fe11(HPO3)8(OH)6 20 Mn11(HPO3)8(OH)6 20

Co12H6(PO4)8(OH)6 17,21 Ni12H6(PO4)8(OH)6 Co12H6(AsO4)8(OH)6 22 Ni12H6(AsO4)8(OH)6

Co12(TeO3)8(OH)6 23 Ni12(TeO3)8(OH)6

Ni12(SeO3)8(OH)8 nickel hydroxy selenite Ni12F2(SeO3)8(OH)6 nickel hydroxo fluoro selenite

Co12H6(VO4)8(OH)6 17,21 Ni12H6(VO4)8(OH)6