Saamite is a rare barium titanium niobium silicate that forms colorless to pale tan platy crystals. It occurs in a hydrothermally-altered pegmatite body emplaced in nepheline syenite. It was first described from Kirovskii mine, Mount Kukisvumchorr, Khibiny alkaline massif, Kola Peninsula, Russia.

Hardness
~3
Mohs
Luster
Vitreous
Streak
White
Transparency
Transparent

Is this saamite?

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 saamite with a known reference. Saamite sits at Mohs ~3, 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: colorless, pale tan.
  • 5
    Look at form & habit
    Crystal system: triclinic. Typical habit: platy crystals.

Often confused with

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

Often found alongside saamite

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

All properties

Chemical formula
Ba☐TiNbNa₃Ti(Si₂O₇)₂O₂(OH)₂(H₂O)₂
Mohs hardness
~3
Density
3.243 g/cm³
Colors
ColorlessPale tan
Streak
White
Luster
Vitreous
Transparency
Transparent
Crystal system
Triclinic
Crystal habit
Platy crystals
Cleavage
Perfect, on {001}
Rarity
Rare
Uses
Collector, Scientific research
Host rock
In a hydrothermally-altered pegmatite body emplaced in nepheline syenite

Where rockhounds find saamite

Classic worldwide localities

  • Kirovskii mine (+252 level), Mount Kukisvumchorr, Khibiny alkaline massif, Kola Peninsula, Russia

Field-hunting tip

Where it forms: In a hydrothermally-altered pegmatite body emplaced in nepheline syenite. If you start seeing natrolite, barytolamprophyllite, kazanskyite in float, you are in the right ground. Typical habit: platy crystals. Train your eye for that shape before scanning the outcrop.

Common questions

How do you identify saamite?+
Mohs hardness is ~3. Luster: vitreous. The streak is white. Common colors include colorless, pale tan.
Where is saamite found?+
Notable localities include Kirovskii mine (+252 level), Mount Kukisvumchorr, Khibiny alkaline massif, Kola Peninsula, Russia.
What rocks look like saamite?+
Saamite is most often confused with Apatite, Fluorapatite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with saamite?+
Saamite commonly co-occurs with Natrolite, Barytolamprophyllite, Kazanskyite, Nechelyustovite, Hydroxylapatite, Belovite-. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does saamite form in?+
Where it forms: In a hydrothermally-altered pegmatite body emplaced in nepheline syenite. Working float back to the host body is the standard way to chase a fresh occurrence.
What is saamite used for?+
Saamite is used in collector, scientific research.

Find saamite on the map

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