Kryzhanovskite is a rare manganese iron phosphate mineral typically found as a secondary alteration product in phosphate-rich granite pegmatites. It usually occurs as small, brownish-red tabular crystals or fine-grained masses closely associated with other phosphate minerals. Collectors prize it as a representative species of late-stage hydrothermal pegmatite mineralization.

Hardness
3.5
Mohs
Luster
Vitreous
Streak
Yellowish-white
Transparency
Translucent

Is this kryzhanovskite?

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 kryzhanovskite with a known reference. Kryzhanovskite sits at Mohs 3.5 — softer than the next harder reference, harder than the previous one.
  • 2
    Check the streak
    Drag the specimen across an unglazed porcelain plate. Kryzhanovskite leaves a yellowish-white streak.
  • 3
    Read the luster
    Hold the specimen under a strong light. Kryzhanovskite typically shows a vitreous luster.
  • 4
    Match the color range
    Compare against the expected color range: brownish-red, orange-brown, reddish-brown.
  • 5
    Look at form & habit
    Crystal system: orthorhombic. Typical habit: tabular crystals or massive aggregates.

Often confused with

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

Often found alongside kryzhanovskite

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

All properties

Chemical formula
Mn³⁺Fe³⁺₂(PO₄)₂(OH)₂
Mohs hardness
3.5
Density
3.5 g/cm³
Streak
Yellowish-white
Luster
Vitreous
Transparency
Translucent
Crystal system
Orthorhombic
Crystal habit
Tabular Crystals or Massive Aggregates
Cleavage
Good On {010}
Rarity
Rare
Uses
Collector, Scientific Research
Host rock
Granite Pegmatites
Typical price
$50-300 per specimen

Where rockhounds find kryzhanovskite

Classic worldwide localities

  • Bully Creek, Oregon, USA
  • Hagendorf, Bavaria, Germany
  • Tip Top Mine, South Dakota, USA

Field-hunting tip

Look in granite pegmatites country — that is the host setting where kryzhanovskite typically forms. If you start seeing triphylite, apatite, rockbridgeite in float, you are in the right ground. Field specimens usually show a tabular crystals or massive aggregates habit, so train your eye for that shape before scanning the outcrop.

Common questions

How do you identify kryzhanovskite?+
Mohs hardness is 3.5. It typically shows a vitreous luster. The streak is yellowish-white. Common colors include brownish-red, orange-brown, reddish-brown.
Where is kryzhanovskite found?+
Notable localities include Bully Creek, Oregon, USA; Hagendorf, Bavaria, Germany; Tip Top Mine, South Dakota, USA.
How much is kryzhanovskite 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 kryzhanovskite?+
Kryzhanovskite is most often confused with Fairfieldite, Triplite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with kryzhanovskite?+
Kryzhanovskite commonly co-occurs with Triphylite, Apatite, Rockbridgeite, Lithiophilite. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does kryzhanovskite form in?+
Kryzhanovskite typically forms in granite pegmatites. Working float back to the host body is the standard way to chase a fresh occurrence.
What is kryzhanovskite used for?+
Kryzhanovskite is used in collector, scientific research.

Find kryzhanovskite on the map

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