Paulmooreite is a rare lead arsenite mineral found almost exclusively in the famous Långban mines of Sweden. It typically occurs as small, colorless to pale yellow tabular crystals often associated with various manganese minerals. Because it contains both lead and arsenic, it is strictly a specimen for advanced mineral collectors and requires cautious handling.

Hardness
3
Mohs
Luster
Vitreous
Streak
White
Transparency
Transparent

Is this paulmooreite?

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 paulmooreite with a known reference. Paulmooreite 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. Paulmooreite leaves a white streak.
  • 3
    Read the luster
    Hold the specimen under a strong light. Paulmooreite typically shows a vitreous luster.
  • 4
    Match the color range
    Compare against the expected color range: colorless, white, pale yellow.
  • 5
    Look at form & habit
    Crystal system: monoclinic. Typical habit: tabular crystals, radiating aggregates.

Often confused with

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

Often found alongside paulmooreite

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

All properties

Chemical formula
Pb₂As₂O₅
Mohs hardness
3
Density
5.65 g/cm³
Streak
White
Luster
Vitreous
Transparency
Transparent
Crystal system
Monoclinic
Crystal habit
Tabular Crystals, Radiating Aggregates
Cleavage
None
Rarity
Rare
Uses
Collector
Host rock
Metamorphic Manganese-iron Skarn Deposits
Typical price
$200-1500 per specimen depending on size and quality

Where rockhounds find paulmooreite

Classic worldwide localities

  • Långban, Filipstad, Värmland, Sweden

Field-hunting tip

Look in metamorphic manganese-iron skarn deposits country — that is the host setting where paulmooreite typically forms. If you start seeing långbanite, hausmannite, barite in float, you are in the right ground. Field specimens usually show a tabular crystals, radiating aggregates habit, so train your eye for that shape before scanning the outcrop.

Common questions

How do you identify paulmooreite?+
Mohs hardness is 3. It typically shows a vitreous luster. The streak is white. Common colors include colorless, white, pale yellow.
Where is paulmooreite found?+
Notable localities include Långban, Filipstad, Värmland, Sweden.
How much is paulmooreite worth?+
Typical asking prices fall in the range of $200-1500 per specimen depending on size and quality. Quality, size, and provenance can move individual specimens well outside that range.
Is paulmooreite safe to handle?+
It contains toxic constituents. Contains lead and arsenic; handle with care and wash hands thoroughly after handling. Do not ingest or inhale dust. Handle with care, avoid grinding or breathing dust, and store separately.
What rocks look like paulmooreite?+
Paulmooreite is most often confused with Mimetite, Anglesite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with paulmooreite?+
Paulmooreite commonly co-occurs with Långbanite, Hausmannite, Barite, Dolomite. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does paulmooreite form in?+
Paulmooreite typically forms in metamorphic manganese-iron skarn deposits. Working float back to the host body is the standard way to chase a fresh occurrence.
What is paulmooreite used for?+
Paulmooreite is used in collector.

Find paulmooreite on the map

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