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.

Hardness
4
Mohs
Luster
Vitreous
Streak
White
Transparency
Translucent

Is this okruschite?

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 okruschite with a known reference. Okruschite sits at Mohs 4 — softer than the next harder reference, harder than the previous one.
  • 2
    Check the streak
    Drag the specimen across an unglazed porcelain plate. Okruschite leaves a white streak.
  • 3
    Read the luster
    Hold the specimen under a strong light. Okruschite typically shows a vitreous luster.
  • 4
    Match the color range
    Compare against the expected color range: pink, pale pink.
  • 5
    Look at form & habit
    Crystal 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.

Common questions

How do you identify okruschite?+
Mohs hardness is 4. It typically shows a vitreous luster. The streak is white. Common colors include pink, pale pink.
Where is okruschite found?+
Notable localities include Hagendorf-South pegmatite, Bavaria, Germany.
How much is okruschite worth?+
Typical asking prices fall in the range of $50-300 per specimen. Quality, size, and provenance can move individual specimens well outside that range.
What rocks look like okruschite?+
Okruschite is most often confused with Fillowite, Chladniite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with okruschite?+
Okruschite commonly co-occurs with Triplite, Apatite, Quartz, Muscovite. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does okruschite form in?+
Okruschite typically forms in granite pegmatites. Working float back to the host body is the standard way to chase a fresh occurrence.
What is okruschite used for?+
Okruschite is used in collector.

Find okruschite on the map

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