Yangite is a rare lead-manganese silicate mineral primarily found in the Yangsuo Mine in China. It typically forms delicate, needle-like acicular crystals or radiating fibrous tufts that are visually distinctive for their pale blue or white coloration.

Hardness
~5
Mohs
Luster
Vitreous
Streak
White
Transparency
Transparent

Is this yangite?

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 yangite with a known reference. Yangite sits at Mohs ~5, softer than the next harder reference, harder than the previous one.
  • 2
    Check the streak
    Drag the specimen across an unglazed porcelain plate. Streak: white.
  • 3
    Read the luster
    Hold the specimen under a strong light. Luster: vitreous.
  • 4
    Match the color range
    Compare against the expected color range: colorless.
  • 5
    Look at form & habit
    Crystal system: triclinic. Typical habit: fibrous, acicular, radiating clusters.

Often confused with

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

Often found alongside yangite

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

All properties

Chemical formula
PbMnSi₃O₈·H₂O
Mohs hardness
~5
Density
4.14 g/cm³
Colors
Streak
White
Luster
Vitreous
Transparency
Transparent
Crystal system
Triclinic
Crystal habit
Fibrous, acicular, radiating clusters
Cleavage
Perfect on {101}
Rarity
Rare
Uses
Collector
Host rock
In rhodochrosite-bearing epithermal veins of a polymetallic sulfide deposit

Where rockhounds find yangite

Classic worldwide localities

  • Kombat mine, Otavi Valley, Namibia

Field-hunting tip

Where it forms: In rhodochrosite-bearing epithermal veins of a polymetallic sulfide deposit. If you start seeing melanotekite, rhodochrosite, helvite in float, you are in the right ground. Typical habit: fibrous, acicular, radiating clusters. Train your eye for that shape before scanning the outcrop.

Common questions

How do you identify yangite?+
Mohs hardness is ~5. Luster: vitreous. The streak is white. Common colors include colorless.
Where is yangite found?+
Notable localities include Kombat mine, Otavi Valley, Namibia.
Is yangite safe to handle?+
Yangite contains lead. Contains lead and manganese; wash hands thoroughly after handling and do not ingest or inhale dust.
What rocks look like yangite?+
Yangite is most often confused with Apophyllite, Pectolite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with yangite?+
Yangite commonly co-occurs with Melanotekite, Rhodochrosite, Helvite, Galena, Barite. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does yangite form in?+
Where it forms: In rhodochrosite-bearing epithermal veins of a polymetallic sulfide deposit. Working float back to the host body is the standard way to chase a fresh occurrence.
What is yangite used for?+
Yangite is used in collector.

Find yangite on the map

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