Formula: (Al,Fe)14(PO4)11(SO4)(OH)7.83H2O
Origin of name: for South African Speleological Association
Crystal system: orthorhombic
Crystal class: unknown
Twinning:
Unit cell:
Colour: white
Diaphaneity:
Luster:
Habit: very small platelets 10 to 20 micron, in nodules
Hardness: 1
Specific gravity: 1.75
Cleavage: 1; {001} perfect
Tenacity:
Streak:
Synonyms/varieties:
Comments:
| 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 |