VS
Name
—
Cu₄Al₃(OH)₁₄F₃·2H₂O
Formula
—
Mineral Species
Entry type
—
Halides
Chemical class
—
Monoclinic
Crystal system
—
2.5
Mohs hardness
—
2.84
Specific gravity
—
Light blue
Streak
—
Vitreous
Luster
—
—
Cleavage
—
C2/m
Space group
—
Cyanotrichite
Structural group
—
Kdk · Approved
IMA
—
1998
Named in
—
Light blue or bright sky-blue
Typical colors
—
Cu · Al · O · H · F
Elements
—