Strakhovite is an exceptionally rare silicate mineral discovered in alkaline pegmatites of the Kola Peninsula. It typically occurs as small, pale yellow tabular crystals and is highly prized by advanced mineral collectors due to its very limited global occurrence.

Hardness
5-6
Mohs
Luster
Vitreous to greasy
Streak
Green
Transparency
Translucent

Is this strakhovite?

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 strakhovite with a known reference. Strakhovite 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. Streak: green.
  • 3
    Read the luster
    Hold the specimen under a strong light. Luster: vitreous to greasy.
  • 4
    Match the color range
    Compare against the expected color range: black, greenish black, dark olive green.
  • 5
    Look at form & habit
    Crystal system: orthorhombic. Typical habit: granular.

Often confused with

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

Often found alongside strakhovite

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

All properties

Chemical formula
NaBa₂Mn₂Si₄O₁₂OHF₂
Mohs hardness
5-6
Density
3.86 g/cm³
Streak
Green
Luster
Vitreous to greasy
Transparency
Translucent
Crystal system
Orthorhombic
Crystal habit
Granular
Cleavage
Imperfect on {110}
Rarity
Rare
Uses
Collector
Host rock
At the contact between braunite ore and alkali basalt

Where rockhounds find strakhovite

Classic worldwide localities

  • The Ir-Nimi manganese deposit, Taikan Ridge, Far East, Russia (type locality)

Field-hunting tip

Where it forms: At the contact between braunite ore and alkali basalt. If you start seeing pectolite, aegirine, microcline in float, you are in the right ground. Typical habit: granular. Train your eye for that shape before scanning the outcrop.

Common questions

How do you identify strakhovite?+
Mohs hardness is 5-6. Luster: vitreous to greasy. The streak is green. Common colors include black, greenish black, dark olive green.
Where is strakhovite found?+
Notable localities include The Ir-Nimi manganese deposit, Taikan Ridge, Far East, Russia (type locality).
What rocks look like strakhovite?+
Strakhovite is most often confused with Labuntsovite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with strakhovite?+
Strakhovite commonly co-occurs with pectolite, aegirine, microcline, fluorite. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does strakhovite form in?+
Where it forms: At the contact between braunite ore and alkali basalt. Working float back to the host body is the standard way to chase a fresh occurrence.
What is strakhovite used for?+
Strakhovite is used in collector.

Find strakhovite on the map

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