Mineral

Eudialyte

Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2

Hardness 5-5.5 on Mohs scale. Characteristic pink, magenta, or reddish-brown color usually set in a white or grey matrix. Luster is vitreous (glassy). Trigonal crystal structure with irregular fracture and poor cleavage. Specific gravity of 2.7–3.0.

Identified March 14, 2026More mineral →

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Physical properties

Formation & geological history

Formed as a primary mineral in alkali-rich igneous rocks, particularly nepheline syenites and their associated pegmatites. It is geographically restricted to rare alkaline complexes around the world.

Uses & applications

Primarily used as a minor ore of zirconium and as a gemstone/ornamental stone for jewelry and metaphysical collections. It is occasionally used as a soil conditioner due to its trace mineral content.

Geological facts

Eudialyte is often called 'the blood of the fallen warriors' in Sami folklore (indigenous people of Lapland). It is unusual because it is highly rich in rare earth elements (REEs) but can be slightly radioactive due to trace uranium or thorium content.

Field identification & locations

Identify by its distinct raspberry-red or magenta inclusions within a light-colored matrix. Commonly found in the Kola Peninsula (Russia), Greenland, Canada (Mont Saint-Hilaire), and Norway. Collectors should look for high-contrast color zones between the pink mineral and white matrix.

Other mineral specimens

See all

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

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

Epidote

Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)

mineral