mineral

Eudialyte

Eudialyte (Na4(Ca,Ce)2(Fe2+,Mn,Y)ZrSi8O22(OH,Cl)2)

Hardness: 5-5.5 (Mohs), Color: red, pink, reddish-brown, Luster: Vitreous to greasy, Crystal structure: Trigonal, Cleavage: Poor/Indistinct, Specific Gravity: 2.7–3.1

Hardness: 5-5

Identified April 20, 2026More mineral →

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Physical properties

Hardness: 5-5.5 (Mohs), Color: red, pink, reddish-brown, Luster: Vitreous to greasy, Crystal structure: Trigonal, Cleavage: Poor/Indistinct, Specific Gravity: 2.7–3.1

Formation & geological history

Formed in alkaline igneous rocks, typically nepheline syenites and pegmatites. It is often found in complex magmatic environments where rare earth elements concentrate.

Uses & applications

Primarily used as a minor ore of zirconium and as a rare gemstones for collectors. It is also valued by metaphysical practitioners.

Geological facts

Eudialyte is known as the 'Dragon's Blood' stone in some cultures. It is unusual because it contains a wide variety of rare elements including Zirconium, Cerium, and Yttrium.

Field identification & locations

Identify in the field by its distinct magenta-to-red color embedded in a matrix of darker (aegirine) or lighter (nepheline) minerals. Commonly found in the Kola Peninsula (Russia), Greenland, and Canada.

Other mineral specimens

See all

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

Schist

Metamorphic

Epidote

Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)

metamorphic

Nephrite Jade

Nephrite

Mineral/Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Metamorphic Rock

Green Apatite on Albite

Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]

mineral