VS
Name
—
Al₁₂(V⁴⁺,V⁵⁺)₈O₃₇·30H₂O
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
—
Crystal system
—
1.5
Mohs hardness
—
2.4
Specific gravity
—
—
Streak
—
Pearly on the cleavage; dull when fine-grained
Luster
—
One direction, perfect, pinacoidal
Cleavage
—
—
Space group
—
—
Structural group
—
Spv · Questionable
IMA
—
1959
Named in
—
Canary-yellow to saffron-yellow; in transmitted light, greenish yellow to pale olive
Typical colors
—
Al · V · O · H
Elements
—