Borovskite is an extremely rare palladium-antimony-telluride mineral typically found as microscopic inclusions in platinum-group ore deposits. It is almost exclusively found by professional prospectors or lab analysis within specialized ultramafic rock environments. Collectors value it as an exotic member of the platinum group of minerals.

Hardness
3
Mohs
Luster
Metallic
Streak
Black
Transparency
Opaque

Is this borovskite?

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 borovskite with a known reference. Borovskite sits at Mohs 3, softer than the next harder reference, harder than the previous one.
  • 2
    Check the streak
    Drag the specimen across an unglazed porcelain plate. Streak: black.
  • 3
    Read the luster
    Hold the specimen under a strong light. Luster: metallic.
  • 4
    Match the color range
    Compare against the expected color range: dark gray.
  • 5
    Look at form & habit
    Crystal system: cubic. Typical habit: anhedral grains.

Often confused with

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

Often found alongside borovskite

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

All properties

Chemical formula
Pd₃SbTe₄
Mohs hardness
3
Density
8.12 g/cm³
Colors
Streak
Black
Luster
Metallic
Transparency
Opaque
Crystal system
Cubic
Crystal habit
Anhedral grains
Cleavage
None
Rarity
Rare
Uses
Collector
Host rock
In massive pentlandite-chalcopyrite-pyrrhotite ores of hydrothermal origin

Where rockhounds find borovskite

Classic worldwide localities

  • Khautovaarsk Cu–Ni deposit, 20 km south of Suoyarvi, Karelia, Russia (type locality)

Field-hunting tip

Where it forms: In massive pentlandite-chalcopyrite-pyrrhotite ores of hydrothermal origin. If you start seeing pyrrhotite, chalcopyrite, altaite in float, you are in the right ground. Typical habit: anhedral grains. Train your eye for that shape before scanning the outcrop.

Common questions

How do you identify borovskite?+
Mohs hardness is 3. Luster: metallic. The streak is black. Common colors include dark gray.
Where is borovskite found?+
Notable localities include Khautovaarsk Cu–Ni deposit, 20 km south of Suoyarvi, Karelia, Russia (type locality).
Is borovskite safe to handle?+
Borovskite contains antimony. Contains tellurium and antimony; handle with care and avoid inhalation of dust when cutting or polishing.
What rocks look like borovskite?+
Borovskite is most often confused with Geversite, Sperrylite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with borovskite?+
Borovskite commonly co-occurs with Pyrrhotite, Chalcopyrite, Altaite, Pentlandite. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does borovskite form in?+
Where it forms: In massive pentlandite-chalcopyrite-pyrrhotite ores of hydrothermal origin. Working float back to the host body is the standard way to chase a fresh occurrence.
What is borovskite used for?+
Borovskite is used in collector.

Find borovskite on the map

RockHoundR shows mapped rockhounding spots, access rules, and lets you log every find.

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