Formula: K6(Na,K)4Na6Mg10(SO4)12(IO3)12 . 12H2O
Origin of name: For Humberto Fuenzalida, Chilean geologist
Crystal system: Hexagonal
Crystal class: -3 2/m
Twinning:
Unit cell:
Colour: Colourless to pale yellow
Diaphaneity: Transparent
Luster: Vitreous
Habit: Pseudorhombohedral thin hexagonal plates to 0.2 mm across, bevelled at edges
Hardness: 2 to 3
Specific gravity: 3.28
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments: Sulfate analogue of carlosruizite; slowly soluble in H2O
| Back to Alphabetical list | Colour photos | Thin sections | SEM images | TEM images | vibrational spectra description | IR spectra | Raman spectra | N-IR spectra | F-IR spectra | IES spectra |