Vlodavetsite is a rare lead-calcium arsenate-sulfate chloride found primarily in volcanic fumaroles. It typically occurs as tiny, thin tabular crystals formed through sublimation and direct deposition from volcanic gases.
Is this vlodavetsite?
5-step field checkRun through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.
- 1Test the hardnessTry to scratch vlodavetsite with a known reference. Vlodavetsite sits at Mohs 2-3 — softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Vlodavetsite leaves a white streak.
- 3Read the lusterHold the specimen under a strong light. Vlodavetsite typically shows a vitreous luster.
- 4Match the color rangeCompare against the expected color range: white, yellow.
- 5Look at form & habitCrystal system: tetragonal. Typical habit: tabular crystals.
Often confused with
Vlodavetsite vs. its common look-alikes — and how to tell them apart in the field.
Often found alongside vlodavetsite
Minerals reported to co-occur with vlodavetsite. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Chemical formula
- Ca₂Pb(SO₄)(AsO₄)Cl
- Mohs hardness
- 2-3
- Density
- 4.15 g/cm³
- Streak
- White
- Luster
- Vitreous
- Transparency
- Translucent
- Crystal system
- Tetragonal
- Crystal habit
- Tabular Crystals
- Cleavage
- None
- Rarity
- Rare
- Uses
- Collector
- Host rock
- Fumarole Encrustations
- Typical price
- $50-300 per specimen
Where rockhounds find vlodavetsite
Classic worldwide localities
- Tolbachik volcano, Kamchatka, Russia
Field-hunting tip
Look in fumarole encrustations country — that is the host setting where vlodavetsite typically forms. If you start seeing tolbachite, tenorite, hematite in float, you are in the right ground. Field specimens usually show a tabular crystals habit, so train your eye for that shape before scanning the outcrop.




