Okruschite is a rare phosphate mineral member of the fillowite group, typically found in complex granite pegmatites. It usually presents as pale pink, vitreous grains or small crystals embedded within phosphate-rich mineral assemblages. Collectors primarily identify it through its association with other secondary phosphates in the Hagendorf-South pegmatite locality.
Is this okruschite?
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 okruschite with a known reference. Okruschite sits at Mohs 4 — softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Okruschite leaves a white streak.
- 3Read the lusterHold the specimen under a strong light. Okruschite typically shows a vitreous luster.
- 4Match the color rangeCompare against the expected color range: pink, pale pink.
- 5Look at form & habitCrystal system: monoclinic. Typical habit: equant to prismatic crystals.
Often confused with
Okruschite vs. its common look-alikes — and how to tell them apart in the field.
Often found alongside okruschite
Minerals reported to co-occur with okruschite. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- CaMn²⁺₃ZnMn²⁺(PO₄)₃
- Mohs hardness
- 4
- Density
- 3.58 g/cm³
- Streak
- White
- Luster
- Vitreous
- Transparency
- Translucent
- Crystal system
- Monoclinic
- Crystal habit
- Equant to Prismatic Crystals
- Cleavage
- Poor
- Rarity
- Rare
- Uses
- Collector
- Host rock
- Granite Pegmatites
- Typical price
- $50-300 per specimen
Where rockhounds find okruschite
Classic worldwide localities
- Hagendorf-South pegmatite, Bavaria, Germany
Field-hunting tip
Look in granite pegmatites country — that is the host setting where okruschite typically forms. If you start seeing triplite, apatite, quartz in float, you are in the right ground. Field specimens usually show a equant to prismatic crystals habit, so train your eye for that shape before scanning the outcrop.





