Pauflerite is a rare vanadium sulfate mineral found primarily in the fumarolic deposits of the Tolbachik volcano. It typically forms deep orange, tabular crystals and is known for its sensitivity to humidity and heat. Collectors prize it for its unique chemical composition and limited locality occurrence.

Hardness
3
Mohs
Luster
Vitreous
Streak
Yellow
Transparency
Transparent

Is this pauflerite?

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 pauflerite with a known reference. Pauflerite 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. Pauflerite leaves a yellow streak.
  • 3
    Read the luster
    Hold the specimen under a strong light. Pauflerite typically shows a vitreous luster.
  • 4
    Match the color range
    Compare against the expected color range: deep orange, reddish-orange.
  • 5
    Look at form & habit
    Crystal system: orthorhombic. Typical habit: tabular crystals.

Often confused with

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

Often found alongside pauflerite

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

All properties

Chemical formula
VOSO₄
Mohs hardness
3
Density
3.37 g/cm³
Streak
Yellow
Luster
Vitreous
Transparency
Transparent
Crystal system
Orthorhombic
Crystal habit
Tabular Crystals
Cleavage
Perfect
Rarity
Rare
Uses
Collector
Host rock
Fumaroles
Typical price
$50-500 depending on specimen size and quality

Where rockhounds find pauflerite

Classic worldwide localities

  • Tolbachik volcano, Kamchatka, Russia

Field-hunting tip

Look in fumaroles country — that is the host setting where pauflerite typically forms. If you start seeing anhydrite, thenardite, 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.

Common questions

How do you identify pauflerite?+
Mohs hardness is 3. It typically shows a vitreous luster. The streak is yellow. Common colors include deep orange, reddish-orange.
Where is pauflerite found?+
Notable localities include Tolbachik volcano, Kamchatka, Russia.
How much is pauflerite worth?+
Typical asking prices fall in the range of $50-500 depending on specimen size and quality. Quality, size, and provenance can move individual specimens well outside that range.
Is pauflerite safe to handle?+
It contains toxic constituents. Contains vanadium, which is toxic if ingested or inhaled as dust. Handle with care and wash hands after handling. Handle with care, avoid grinding or breathing dust, and store separately.
What rocks look like pauflerite?+
Pauflerite is most often confused with Vanadinite, Descloizite. A quick hardness test and a streak check separate the look-alikes faster than color alone.
What minerals are found with pauflerite?+
Pauflerite commonly co-occurs with Anhydrite, Thenardite, Hematite. Spotting any of these in float or country rock is a useful trip signal.
What kind of rock does pauflerite form in?+
Pauflerite typically forms in fumaroles. Working float back to the host body is the standard way to chase a fresh occurrence.
What is pauflerite used for?+
Pauflerite is used in collector.

Find pauflerite on the map

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