VS
Name
—
Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Hexagonal
Crystal system
—
5–6
Mohs hardness
—
2.74–3.1
Specific gravity
—
white
Streak
—
Vitreous to dull
Luster
—
Perfect to indistinct on {0001}, imperfect on {1120}
Cleavage
—
R-3m
Space group
—
Eudialyte
Structural group
—
Eud · Approved
IMA
—
1819
Named in
—
Red, Brown, Pink
Typical colors
—
Na · Ca · Fe · Zr · Si · O · H · Cl
Elements
—