Figure 5
Variation of hexagonal cell parameters with time for the KNa series. Black squares = KNa_353; white diamonds = KNa_368_R; grey triangles = KNa_368_M; white circles = KNa_393_R; dark grey diamonds = KNa_393_M. The literature values of (K0.368H3O0.05)Fe3(SO4)2(OH)6–H3OFe3(SO4)2(OH)6 (Basciano & Peterson, 2007) are shown as black filled squares joined by a solid line. Where monoclinic phases have formed, pseudo-hexagonal axes have been calculated. |