Manganotychite is a rare manganese-dominant member of the tychite group, primarily known from unique alkaline rock environments. Collectors typically look for small, sharp, pale pink to white pseudo-octahedral crystals that often appear in cavities within intrusive rocks.

Hardness
4
Mohs
Luster
Vitreous to dull
Streak
White
Transparency
Semitransparent

Is this manganotychite?

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 manganotychite with a known reference. Manganotychite sits at Mohs 4, softer than the next harder reference, harder than the previous one.
  • 2
    Check the streak
    Drag the specimen across an unglazed porcelain plate. Streak: white.
  • 3
    Read the luster
    Hold the specimen under a strong light. Luster: vitreous to dull.
  • 4
    Match the color range
    Compare against the expected color range: brown, white, pink.
  • 5
    Look at form & habit
    Crystal system: cubic. Typical habit: equant pseudo-octahedral crystals.

Often confused with

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

Often found alongside manganotychite

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

All properties

Chemical formula
Na₆Mn₂(SO₄)(CO₃)₄
Mohs hardness
4
Density
2.70 g/cm³
Streak
White
Luster
Vitreous to dull
Transparency
Semitransparent
Crystal system
Cubic
Crystal habit
Equant pseudo-octahedral crystals
Cleavage
None
Rarity
Rare
Uses
Collector
Host rock
An uncommon mineral formed in pegmatite veins in a differentiated alkalic massif (Mt. Alluaiv, Kola Peninsula, Russia)

Where rockhounds find manganotychite

Classic worldwide localities

  • Mt. Alluaiv, Lovozero massif, Kola Peninsula, Russia
  • Mont Saint-Hilaire, Quebec, Canada

Field-hunting tip

Where it forms: An uncommon mineral formed in pegmatite veins in a differentiated alkalic massif (Mt. Alluaiv, Kola Peninsula, Russia). If you start seeing shortite, pirssonite, sidorenkite in float, you are in the right ground. Typical habit: equant pseudo-octahedral crystals. Train your eye for that shape before scanning the outcrop.

Common questions

How do you identify manganotychite?+
Mohs hardness is 4. Luster: vitreous to dull. The streak is white. Common colors include brown, white, pink.
Where is manganotychite found?+
Notable localities include Mt. Alluaiv, Lovozero massif, Kola Peninsula, Russia; Mont Saint-Hilaire, Quebec, Canada.
What rocks look like manganotychite?+
Manganotychite is most often confused with Tychite, Northupite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with manganotychite?+
Manganotychite commonly co-occurs with Shortite, Pirssonite, Sidorenkite, Kogarkoite, Trona, Petersenite-. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does manganotychite form in?+
Where it forms: An uncommon mineral formed in pegmatite veins in a differentiated alkalic massif (Mt. Alluaiv, Kola Peninsula, Russia). Working float back to the host body is the standard way to chase a fresh occurrence.
What is manganotychite used for?+
Manganotychite is used in collector.

Find manganotychite on the map

RockHoundR shows mapped rockhounding spots, access rules, and lets you log every find.

Download on the App StoreGet it on Google Play