VS
Name
—
NaCaAlF₆·H₂O
Formula
—
Mineral Species
Entry type
—
Halides
Chemical class
—
Monoclinic
Crystal system
—
2
Mohs hardness
—
2.981
Specific gravity
—
—
Streak
—
Vitreous, pearly on cleavages
Luster
—
{001}, perfect; {110}, distinct
Cleavage
—
P2_1/c
Space group
—
—
Structural group
—
Tse · Grandfathered
IMA
—
1868
Named in
—
Colorless to white, can be brownish or reddish with included iron oxide; colorless in transmitted light
Typical colors
—
Na · Ca · Al · F · H · O
Elements
—