Manganokukisvumite is a rare member of the labuntsovite group typically found as small, pale pink prismatic crystals in alkaline pegmatites. It is primarily a collector's species, valued for its complex chemistry and limited global distribution in the Khibiny Massif of Russia.
Is this manganokukisvumite?
5-step field checkRun through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.
- 1Test the hardnessTry to scratch manganokukisvumite with a known reference. Manganokukisvumite sits at Mohs 5 — softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Manganokukisvumite leaves a white streak.
- 3Read the lusterHold the specimen under a strong light. Manganokukisvumite typically shows a vitreous luster.
- 4Match the color rangeCompare against the expected color range: pink, pale pink.
- 5Look at form & habitCrystal system: monoclinic. Typical habit: prismatic crystals.
Often confused with
Manganokukisvumite vs. its common look-alikes — and how to tell them apart in the field.
Often found alongside manganokukisvumite
Minerals reported to co-occur with manganokukisvumite. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- Na₄MnTi₂Si₈O₂₄(OH)₄·4H₂O
- Mohs hardness
- 5
- Density
- 2.83 g/cm³
- Streak
- White
- Luster
- Vitreous
- Transparency
- Translucent
- Crystal system
- Monoclinic
- Crystal habit
- Prismatic Crystals
- Cleavage
- None
- Rarity
- Rare
- Uses
- Collector
- Host rock
- Alkaline Pegmatites
- Typical price
- $50-300 per specimen
Where rockhounds find manganokukisvumite
Classic worldwide localities
- Khibiny Massif, Kola Peninsula, Russia
Field-hunting tip
Look in alkaline pegmatites country — that is the host setting where manganokukisvumite typically forms. If you start seeing aegirine, microcline, nepheline in float, you are in the right ground. Field specimens usually show a prismatic crystals habit, so train your eye for that shape before scanning the outcrop.





