Manganoeudialyte is a manganese-rich member of the complex eudialyte group found in alkaline igneous environments. It is highly valued by collectors for its vibrant pink to magenta hues and often occurs as tabular crystals or massive grains within nepheline syenites.

Hardness

5-6

Mohs

Luster

Vitreous

Streak

White

Transparency

Translucent

mineralrareEudialyte Group family

Manganoeudialyte

Hardness: 5-6
Luster: Vitreous
Streak: White
Transparency: Translucent

Is this manganoeudialyte?

5-step field check

Run through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.

1
Test the hardness
Try to scratch manganoeudialyte with a known reference. Manganoeudialyte sits at Mohs 5-6 — softer than the next harder reference, harder than the previous one.
2
Check the streak
Drag the specimen across an unglazed porcelain plate. Manganoeudialyte leaves a white streak.
3
Read the luster
Hold the specimen under a strong light. Manganoeudialyte typically shows a vitreous luster.
4
Match the color range
Compare against the expected color range: pink, red, magenta.
5
Look at form & habit
Crystal system: trigonal. Typical habit: tabular crystals, massive, granular.

Often confused with

Manganoeudialyte vs. its common look-alikes — and how to tell them apart in the field.

How to tell apart: Streak differs — Manganoeudialyte leaves white, Aegirine leaves yellowish-grey.

Often found alongside manganoeudialyte

Minerals reported to co-occur with manganoeudialyte. Spotting these in float or country rock is a strong cue you are in the right ground.

All properties

Chemical formula: Na₁₅Ca₆(Mn,Fe)₃Zr₃Si₂₆O₇₂Cl₂·H₂O
Mohs hardness: 5-6
Density: 2.8-3.0 g/cm³
Colors: Pink Red Magenta
Streak: White
Luster: Vitreous
Transparency: Translucent
Crystal system: Trigonal
Crystal habit: Tabular Crystals, Massive, Granular
Cleavage: Poor
Rarity: Rare
Uses: Collector, Geological Study
Host rock: Alkaline Igneous Rocks, Syenite Pegmatites
Typical price: $20-150 per specimen depending on size and intensity of color

Where rockhounds find manganoeudialyte

Classic worldwide localities

Kola Peninsula, Russia
Mont Saint-Hilaire, Canada
Norra Kärr, Sweden

Field-hunting tip

Look in alkaline igneous rocks, syenite pegmatites country — that is the host setting where manganoeudialyte typically forms. If you start seeing aegirine, nepheline, microcline in float, you are in the right ground. Field specimens usually show a tabular crystals, massive, granular habit, so train your eye for that shape before scanning the outcrop.

Common questions

How do you identify manganoeudialyte?+

Mohs hardness is 5-6. It typically shows a vitreous luster. The streak is white. Common colors include pink, red, magenta.

Where is manganoeudialyte found?+

Notable localities include Kola Peninsula, Russia; Mont Saint-Hilaire, Canada; Norra Kärr, Sweden.

How much is manganoeudialyte worth?+

Typical asking prices fall in the range of $20-150 per specimen depending on size and intensity of color. Quality, size, and provenance can move individual specimens well outside that range.

Is manganoeudialyte safe to handle?+

This mineral is radioactive. Contains trace amounts of rare earth elements and uranium; avoid inhaling dust when cutting or grinding and store away from living areas. Handle with care, avoid grinding or breathing dust, and store separately.

What rocks look like manganoeudialyte?+

Manganoeudialyte is most often confused with Eudialyte, Aegirine, Wadeite. A quick hardness test and a streak check separate the look-alikes faster than color alone.

What minerals are found with manganoeudialyte?+

Manganoeudialyte commonly co-occurs with Aegirine, Nepheline, Microcline, Arfvedsonite. Spotting any of these in float or country rock is a useful trip signal.

What kind of rock does manganoeudialyte form in?+

Manganoeudialyte typically forms in alkaline igneous rocks, syenite pegmatites. Working float back to the host body is the standard way to chase a fresh occurrence.

What is manganoeudialyte used for?+

Manganoeudialyte is used in collector, geological study.

Find manganoeudialyte on the map

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