VS
Name
—
Zn₂Fe³⁺₃(PO₄)₃(OH)₄(H₂O)
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Orthorhombic
Crystal system
—
3.5–4
Mohs hardness
—
3.67
Specific gravity
—
Pale grayish-green
Streak
—
Vitreous
Luster
—
Perfect on {100} and {010}, distinct on {001}
Cleavage
—
Bbmm
Space group
—
Rockbridgeite
Structural group
—
Pme · Approved
IMA
—
2008
Named in
—
Pale olive-green to dark green, almost black; pale green to dark olive-green as aggregates
Typical colors
—
Zn · Fe · P · O · H
Elements
—