Anglesite
Anglesite is sulfate (barite group), PbSO₄. In the hand, it rates 2.5 to 3 on the Mohs scale, and it runs colorless and white. Diamond-lustered colorless-to-straw crystals of absurd heft, often growing as a shell around a gray galena heart. Oxidized lead deposits; notable: Touissit (Morocco), Tsumeb (Namibia), Monteponi (Sardinia), Wales (namesake Anglesey).
The geology.
Anglesite carries the formula PbSO₄. It belongs to the orthorhombic system. On paper it is sulfate (barite group).
It sits at 2.5 to 3 on the Mohs scale. The surface reads adamantine to resinous. Light behaviour is transparent to opaque. Specific gravity runs 6.3 to 6.4. The streak is white. It breaks with good cleavage; conchoidal fracture; brittle.
Diamond-lustered colorless-to-straw crystals of absurd heft, often growing as a shell around a gray galena heart.
Expect to see it as tabular and prismatic crystals, crusts around galena or massive.
The origins.
Oxidized lead deposits; notable: Touissit (Morocco), Tsumeb (Namibia), Monteponi (Sardinia), Wales (namesake Anglesey).
On value, the database notes: collector mineral; gemmy Moroccan crystals are prized.
Traditional associations.
In energy work traditions, anglesite has little established lore; some traditions link it with gentle communication.
Recorded here because it is part of how this material is sold, not because it is a property of the material.
Spotting the real thing.
Diamond-lustered colorless-to-straw crystals of absurd heft, often growing as a shell around a gray galena heart.
| Looks like | How to tell them apart |
|---|---|
| Barite | Nearly identical chemistry-cousin but barite is notably lighter (SG 4.5 vs 6.3) |
| Cerussite | Lead carbonate twin, cerussite fizzes in warm dilute acid and twins into star shapes |
| Quartz | Quartz is far harder and feels featherweight beside it |
At-home tests.
None of these need a lab. A 10x loupe, good daylight and a steady hand cover most of what a buyer needs to know about anglesite.
| Test | What you should see |
|---|---|
| By weight | Extreme heft (SG ~6.3) |
| By eye | Adamantine sparkle |
| Scratch check | Knife scratches it easily |
| Under UV | Often fluoresces yellow under UV |
Stop short of anything that leaves a mark. A gemologist can answer the rest without damaging the stone.
Care & handling.
At 2.5 to 3 on the Mohs scale this is a soft material. Keep it as a display piece, store it apart from harder stones, and skip daily-wear settings.
It breaks with good cleavage; conchoidal fracture; brittle, which is worth knowing before you set it or drop it.
Skip the ultrasonic. Lukewarm water, mild soap and a soft cloth handle routine cleaning without risk.
Lead mineral, stable to handle, but wash hands afterward, never grind it, and keep away from children.
A deeper look.
Extended detail on composition, sourcing, authentication and market value.
The physical record
The formula on record is PbSO₄. Crystal system: Orthorhombic. Specific gravity: 6.3 to 6.4. Streak: White. Cleavage and fracture: Good cleavage; conchoidal fracture; brittle.
How it reaches the market
Oxidized lead deposits; notable: Touissit (Morocco), Tsumeb (Namibia), Monteponi (Sardinia), Wales (namesake Anglesey).
What it gets confused with
Barite: Nearly identical chemistry-cousin but barite is notably lighter (SG 4.5 vs 6.3). Cerussite: Lead carbonate twin, cerussite fizzes in warm dilute acid and twins into star shapes. Quartz: Quartz is far harder and feels featherweight beside it.
What it is worth
Collector mineral; gemmy Moroccan crystals are prized.
One more thing
Anglesite is galena's rust, lead ore reacting with oxygen-rich water turns into these gem-clear crystals.
An education-first guide.
We do not carry anglesite. This page exists because the question comes up and the honest answer is worth writing down, whether or not there is anything here to sell you.
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