Zeravshanite is a rare cyclosilicate mineral primarily found in the Dara-i-Pioz alkaline massif of Tajikistan. It typically occurs as small, clear to white tabular crystals within pegmatite veins and is highly prized by advanced mineral collectors for its unique structure and restricted locality.

Hardness
6
Mohs
Luster
Vitreous
Transparency
Transparent

Is this zeravshanite?

4-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 zeravshanite with a known reference. Zeravshanite sits at Mohs 6, softer than the next harder reference, harder than the previous one.
  • 2
    Read the luster
    Hold the specimen under a strong light. Luster: vitreous.
  • 3
    Match the color range
    Compare against the expected color range: colorless.
  • 4
    Look at form & habit
    Crystal system: monoclinic. Typical habit: aggregates, tabular.

Often confused with

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

Often found alongside zeravshanite

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

All properties

Chemical formula
Na₂Cs₄Zr₃Si₁₈O₄₅·2H₂O
Mohs hardness
6
Density
3.09 g/cm³
Colors
Luster
Vitreous
Transparency
Transparent
Crystal system
Monoclinic
Crystal habit
Aggregates, tabular
Cleavage
One unspecified direction
Rarity
Rare
Uses
Collector
Host rock
A pegmatite mineral in a quartz rock fragment in glacial sediment derived from an alkaline massif

Where rockhounds find zeravshanite

Classic worldwide localities

  • Glacial moraine of the Dara-i-Pioz clacier, Alai mountain range, Tien-Shan Mountains, Tajikistan (type locality)

Field-hunting tip

Where it forms: A pegmatite mineral in a quartz rock fragment in glacial sediment derived from an alkaline massif. If you start seeing intergrowth with pectolite, quartz, aegirine in float, you are in the right ground. Typical habit: aggregates, tabular. Train your eye for that shape before scanning the outcrop.

Common questions

How do you identify zeravshanite?+
Mohs hardness is 6. Luster: vitreous. Common colors include colorless.
Where is zeravshanite found?+
Notable localities include Glacial moraine of the Dara-i-Pioz clacier, Alai mountain range, Tien-Shan Mountains, Tajikistan (type locality).
What rocks look like zeravshanite?+
Zeravshanite is most often confused with Eudialyte, Zektzerite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with zeravshanite?+
Zeravshanite commonly co-occurs with Intergrowth with pectolite, Quartz, Aegirine, Pectolite, Polylithionite, Reedmergnerite. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does zeravshanite form in?+
Where it forms: A pegmatite mineral in a quartz rock fragment in glacial sediment derived from an alkaline massif. Working float back to the host body is the standard way to chase a fresh occurrence.
What is zeravshanite used for?+
Zeravshanite is used in collector.

Find zeravshanite on the map

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