Formula: Na2Fe(SO4)2(OH).3H2O
Origin of name: from Greek sideros = iron and natrium = sodium
Crystal system: orthorhombic
Crystal class: 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: yellow to straw-yellow to yellow-brown, pale orange
Diaphaneity:
Luster:
Habit: crystals finely acicular, fibrous crusts, nodular masses, earthy
Hardness: 1.5 to 2.5
Specific gravity: 2.28
Cleavage: 1; {100} perfect
Tenacity:
Streak: yellowish white to pale yellow
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 |