Zaherite is a rare aluminum silicate hydrate mineral that typically forms as white, platy aggregates within hydrothermal veins. It is most recognized for its association with kaolinite-group minerals and its distinct pearly luster.
Is this zaherite?
5-step field checkRun through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.
- 1Test the hardnessTry to scratch zaherite with a known reference. Zaherite sits at Mohs 2.5-3, softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Zaherite leaves a white streak.
- 3Read the lusterHold the specimen under a strong light. Zaherite typically shows a pearly luster.
- 4Match the color rangeCompare against the expected color range: white, colorless, pale blue.
- 5Look at form & habitCrystal system: monoclinic. Typical habit: platy.
Often confused with
Zaherite vs. its common look-alikes, and how to tell them apart in the field.
Often found alongside zaherite
Minerals reported to co-occur with zaherite. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- Al₁₂Si₅O₂₀(OH)₁₆·12H₂O
- Mohs hardness
- 2.5-3
- Density
- 2.35 g/cm³
- Streak
- White
- Luster
- Pearly
- Transparency
- Translucent
- Crystal system
- Monoclinic
- Crystal habit
- Platy
- Cleavage
- Perfect
- Rarity
- Rare
- Uses
- Collector
- Host rock
- Hydrothermal Veins
- Typical price
- $50-300 per specimen
Where rockhounds find zaherite
Classic worldwide localities
- Zaher, Pakistan
- Czech Republic
Field-hunting tip
Look in hydrothermal veins country, the host setting where zaherite typically forms. If you start seeing quartz, pyrite, kaolinite in float, you are in the right ground. Field specimens usually show a platy habit, so train your eye for that shape before scanning the outcrop.




