Formula: Ca(V,Fe)8O20 . 4H2O
Origin of name: For Eulagio E. Fernandini, Peruvian mine owner
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: Dull green
Diaphaneity:
Luster:
Habit: Rare angular plates and flakes, massive cryptocrystalline
Hardness:
Specific gravity:
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments: Had been discredited but new information and new formula have been proposed
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