VS
Name
—
Ca₄CuB₄O₆(OH)₆(CO₃)₂
Formula
—
Mineral Species
Entry type
—
Borates
Chemical class
—
Monoclinic
Crystal system
—
4.5
Mohs hardness
—
2.96
Specific gravity
—
White to pale blue-green
Streak
—
Vitreous
Luster
—
Perfect, in two directions
Cleavage
—
C2/m
Space group
—
—
Structural group
—
Num · Approved
IMA
—
2005
Named in
—
Blue-green to colorless, colorless to pale blue-green in thin section
Typical colors
—
Ca · Cu · B · O · H · C
Elements
—