VS
Name
—
[Ca₂(H₂O)₁₇Ca(H₂O)₆][Mo⁶⁺₈As⁵⁺₂Fe³⁺₃O₃₆(OH)]
Formula
—
Mineral Species
Entry type
—
Oxides & Hydroxides
Chemical class
—
Monoclinic
Crystal system
—
3
Mohs hardness
—
2.98–3.05
Specific gravity
—
—
Streak
—
Dull to waxy
Luster
—
{001}, very good
Cleavage
—
C2/m
Space group
—
Betpakdalite
Structural group
—
Bpd-CaCa · Approved
IMA
—
1961
Named in
—
Bright lemon-yellow with a pale greenish, rarely brownish, tint; greenish yellow in transmitted light
Typical colors
—
Ca · H · O · Mo · As · Fe
Elements
—