Polarite is an extremely rare palladium bismuth-lead mineral found primarily within platinum-group element (PGE) deposits. It typically occurs as microscopic anhedral grains associated with other sulfides and platinum-group minerals, making it a challenging find for field collectors. Because of its rarity and metallic nature, it is highly prized among advanced mineralogists focusing on ore microscopy.
Is this polarite?
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 polarite with a known reference. Polarite sits at Mohs 4-5 — softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Polarite leaves a black streak.
- 3Read the lusterHold the specimen under a strong light. Polarite typically shows a metallic luster.
- 4Match the color rangeCompare against the expected color range: white, gray.
- 5Look at form & habitCrystal system: orthorhombic. Typical habit: anhedral grains, microscopic inclusions.
Often confused with
Polarite vs. its common look-alikes — and how to tell them apart in the field.
Often found alongside polarite
Minerals reported to co-occur with polarite. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- PdBiPb
- Mohs hardness
- 4-5
- Density
- 12.8-13.2 g/cm³
- Streak
- Black
- Luster
- Metallic
- Transparency
- Opaque
- Crystal system
- Orthorhombic
- Crystal habit
- Anhedral Grains, Microscopic Inclusions
- Cleavage
- None
- Rarity
- Rare
- Uses
- Collector
- Host rock
- Mafic and Ultramafic Igneous Rocks
- Typical price
- $50-500 depending on specimen size and purity
Where rockhounds find polarite
Classic worldwide localities
- Medvezhii Creek, Russia
- Norilsk, Russia
- Stillwater Complex, USA
- Bushveld Complex, South Africa
Field-hunting tip
Look in mafic and ultramafic igneous rocks country — that is the host setting where polarite typically forms. If you start seeing chalcopyrite, pentlandite, galena in float, you are in the right ground. Field specimens usually show a anhedral grains, microscopic inclusions habit, so train your eye for that shape before scanning the outcrop.
Common questions
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Find polarite on the map
RockHoundR shows mapped rockhounding spots, access rules, and lets you log every find.
