Eudialyte is a rare cyclosilicate mineral belonging to the eudialyte group, notable for its rich magenta, red, and pink colors, often mixed with black and green inclusions.
- Formula: Na₁₅Ca₆(Fe,Mn)₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂
- Crystal system: Trigonal
- Hardness: 5–5.5 on Mohs scale
- Luster: Vitreous
- Transparency: Transparent to translucent
- Colors: Deep red, pink, magenta with contrasting inclusions