VS
Name
—
NaBa₃CaY(CO₃)₆·3H₂O
Formula
—
Mineral Species
Entry type
—
Carbonates
Chemical class
—
Monoclinic
Crystal system
—
3.5–4
Mohs hardness
—
3.25
Specific gravity
—
—
Streak
—
Vitreous to dull
Luster
—
—
Cleavage
—
Cc
Space group
—
Mckelveyite
Structural group
—
Mkv-Y · Approved
IMA
—
1964
Named in
—
Lime-yellow, greenish gray, reddish brown, black from contained organic material; transparent in thin section
Typical colors
—
Na · Ba · Ca · Y · C · O · H
Elements
—