VS
Name
—
(H₂O,K)₃.₅Fe³⁺₈(PO₄)₆(OH)₇·5H₂O
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Orthorhombic
Crystal system
—
4
Mohs hardness
—
2.9
Specific gravity
—
—
Streak
—
Vitreous
Luster
—
One, nearly perfect, pinacoidal
Cleavage
—
—
Space group
—
Phosphofibrite
Structural group
—
Pfb · Approved
IMA
—
1982
Named in
—
Yellow or yellowish green
Typical colors
—
H · O · K · Fe · P
Elements
—