Vladykinite is an extremely rare silicate mineral found primarily within the unique alkaline rocks of the Murun Massif in Siberia. It typically forms as prismatic, colorless to white crystals and is a significant find for advanced systematic collectors due to its complex chemical structure and limited occurrence.

Hardness
5
Mohs
Luster
Vitreous
Streak
White
Transparency
Transparent

Is this vladykinite?

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 vladykinite with a known reference. Vladykinite sits at Mohs 5, 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.
  • 4
    Match the color range
    Compare against the expected color range: pinkish, grayish brown.
  • 5
    Look at form & habit
    Crystal system: monoclinic. Typical habit: prismatic crystals.

Often confused with

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

Often found alongside vladykinite

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

All properties

Chemical formula
Na₃Sr₄(FeFe)Si₈O₂₄
Mohs hardness
5
Density
3.51 g/cm³
Colors
PinkishGrayish brown
Streak
White
Luster
Vitreous
Transparency
Transparent
Crystal system
Monoclinic
Crystal habit
Prismatic crystals
Cleavage
Distinct on {100}
Rarity
Rare
Uses
Collector
Host rock
An early magmatic phase in a dike of coarse-grained feldspathoidal syenite (lujavrite) in an alkaline igneous complex

Where rockhounds find vladykinite

Classic worldwide localities

  • Mt. Maly, north-central part of the Murun complex, southwestern Yakutia, eastern Siberia, Russia

Field-hunting tip

Where it forms: An early magmatic phase in a dike of coarse-grained feldspathoidal syenite (lujavrite) in an alkaline igneous complex. If you start seeing aegirine, potassium feldspar, eudialyte in float, you are in the right ground. Typical habit: prismatic crystals. Train your eye for that shape before scanning the outcrop.

Common questions

How do you identify vladykinite?+
Mohs hardness is 5. Luster: vitreous. The streak is white. Common colors include pinkish, grayish brown.
Where is vladykinite found?+
Notable localities include Mt. Maly, north-central part of the Murun complex, southwestern Yakutia, eastern Siberia, Russia.
What rocks look like vladykinite?+
Vladykinite is most often confused with Tinaksite, Tokkoite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with vladykinite?+
Vladykinite commonly co-occurs with Aegirine, Potassium feldspar, Eudialyte, Lamprophyllite, Nepheline. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does vladykinite form in?+
Where it forms: An early magmatic phase in a dike of coarse-grained feldspathoidal syenite (lujavrite) in an alkaline igneous complex. Working float back to the host body is the standard way to chase a fresh occurrence.
What is vladykinite used for?+
Vladykinite is used in collector.

Find vladykinite on the map

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