VS
Name
—
NaCaCu₅(AsO₄)₄Cl·3H₂O
Formula
—
Mineral Species
Entry type
—
Arsenates
Chemical class
—
Tetragonal
Crystal system
—
2.5
Mohs hardness
—
3.78
Specific gravity
—
Light blue
Streak
—
Vitreous
Luster
—
Excellent on {001}
Cleavage
—
P4_122
Space group
—
—
Structural group
—
Lmk · Approved
IMA
—
1999
Named in
—
Dark sky-blue
Typical colors
—
Na · Ca · Cu · As · O · Cl · H
Elements
—