Manganonordite-(Ce) is a rare silicate mineral belonging to the nordite group, typically found in agpaitic alkaline igneous rocks. Collectors often look for it in the form of tabular crystals or grains embedded within pegmatite assemblages, most notably from the Lovozero Massif in Russia or Mont Saint-Hilaire in Canada.
Is this manganonordite-(ce)?
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 manganonordite-(ce) with a known reference. Manganonordite-(Ce) sits at Mohs 5-5.5 — softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Manganonordite-(Ce) leaves a white streak.
- 3Read the lusterHold the specimen under a strong light. Manganonordite-(Ce) typically shows a vitreous luster.
- 4Match the color rangeCompare against the expected color range: colorless, white, yellowish, brownish.
- 5Look at form & habitCrystal system: orthorhombic. Typical habit: tabular crystals, granular aggregates.
Often confused with
Manganonordite-(Ce) vs. its common look-alikes — and how to tell them apart in the field.
Often found alongside manganonordite-(ce)
Minerals reported to co-occur with manganonordite-(ce). Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- Na₃SrCeMnSi₆O₁₇
- Mohs hardness
- 5-5.5
- Density
- 3.55 g/cm³
- Streak
- White
- Luster
- Vitreous
- Transparency
- Translucent
- Crystal system
- Orthorhombic
- Crystal habit
- Tabular Crystals, Granular Aggregates
- Cleavage
- Distinct On {001}
- Rarity
- Rare
- Uses
- Collector
- Host rock
- Alkaline Pegmatites
- Typical price
- $50-300 per specimen
Where rockhounds find manganonordite-(ce)
Classic worldwide localities
- Kola Peninsula, Russia
- Mont Saint-Hilaire, Canada
Field-hunting tip
Look in alkaline pegmatites country — that is the host setting where manganonordite-(ce) typically forms. If you start seeing aegirine, microcline, nepheline in float, you are in the right ground. Field specimens usually show a tabular crystals, granular aggregates habit, so train your eye for that shape before scanning the outcrop.





