Shuangfengite is a rare iridium-telluride mineral first discovered in the Shuangfeng mine in China. It typically occurs as small, silver-white metallic grains or tabular crystals within platinum-group element bearing deposits. Collectors prize it for its extreme rarity and complex composition as an iridium-dominant species.

Hardness
3
Mohs
Luster
Metallic
Transparency
Opaque

Is this shuangfengite?

4-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 shuangfengite with a known reference. Shuangfengite sits at Mohs 3, softer than the next harder reference, harder than the previous one.
  • 2
    Read the luster
    Hold the specimen under a strong light. Luster: metallic.
  • 3
    Match the color range
    Compare against the expected color range: black.
  • 4
    Look at form & habit
    Crystal system: trigonal. Typical habit: massive.

Often confused with

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

Often found alongside shuangfengite

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

All properties

Chemical formula
IrTe₂
Mohs hardness
3
Density
10.14 g/cm³
Colors
Luster
Metallic
Transparency
Opaque
Crystal system
Trigonal
Crystal habit
Massive
Rarity
Rare
Uses
Collector
Host rock
All rights reserved

Where rockhounds find shuangfengite

Classic worldwide localities

  • Located hear the village of Shuangfeng about 190 km NNE of Beijing, People's Republic of China (type locality)

Field-hunting tip

Where it forms: All rights reserved. If you start seeing chalcopyrite, pyrite, pentlandite in float, you are in the right ground. Typical habit: massive. Train your eye for that shape before scanning the outcrop.

Common questions

How do you identify shuangfengite?+
Mohs hardness is 3. Luster: metallic. Common colors include black.
Where is shuangfengite found?+
Notable localities include Located hear the village of Shuangfeng about 190 km NNE of Beijing, People's Republic of China (type locality).
Is shuangfengite safe to handle?+
Contains tellurium; avoid inhaling dust or vapors during processing. Wear proper personal protective equipment when handling specimen fragments.
What rocks look like shuangfengite?+
Shuangfengite is most often confused with Cobaltite, Gersdorffite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with shuangfengite?+
Shuangfengite commonly co-occurs with Chalcopyrite, Pyrite, Pentlandite, Tellurobismuthite. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does shuangfengite form in?+
Where it forms: All rights reserved. Working float back to the host body is the standard way to chase a fresh occurrence.
What is shuangfengite used for?+
Shuangfengite is used in collector.

Find shuangfengite on the map

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

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