Voglite is a rare secondary uranium mineral that forms distinct, vibrant green crusts or small crystalline aggregates in the oxidation zones of uranium deposits. Collectors should look for its association with other uranyl carbonates on oxidized uranium ore, often occurring as delicate, needle-like formations.

Hardness

2.5

Mohs

Luster

Vitreous

Streak

Pale Green

Transparency

Translucent

mineralrare

Voglite

Hardness: 2.5
Luster: Vitreous
Streak: Pale Green
Transparency: Translucent

Is this voglite?

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 voglite with a known reference. Voglite sits at Mohs 2.5 — softer than the next harder reference, harder than the previous one.
2
Check the streak
Drag the specimen across an unglazed porcelain plate. Voglite leaves a pale green streak.
3
Read the luster
Hold the specimen under a strong light. Voglite typically shows a vitreous luster.
4
Match the color range
Compare against the expected color range: emerald green, grass green.
5
Look at form & habit
Crystal system: triclinic. Typical habit: crusts, granular, acicular aggregates.

Often confused with

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

mineral

Liebigite

Mohs 2.5

How to tell apart: Streak differs — Voglite leaves pale green, Liebigite leaves pale yellow.

How to tell apart: Streak differs — Voglite leaves pale green, Andersonite leaves white.

Compare →

Often found alongside voglite

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

Uraninite
mineral · Mohs 5-6

All properties

Chemical formula: Ca₂Cu(UO₂)(CO₃)₄·10H₂O
Mohs hardness: 2.5
Density: 3.0 g/cm³
Colors: Emerald Green Grass Green
Streak: Pale Green
Luster: Vitreous
Transparency: Translucent
Crystal system: Triclinic
Crystal habit: Crusts, Granular, Acicular Aggregates
Cleavage: None
Rarity: Rare
Uses: Collector
Host rock: Oxidized Uranium Ore Deposits
Typical price: $50-300 per small specimen

Where rockhounds find voglite

Classic worldwide localities

Jáchymov, Czech Republic
Schneeberg, Germany
Red Canyon, Utah, USA

Field-hunting tip

Look in oxidized uranium ore deposits country — that is the host setting where voglite typically forms. If you start seeing uranyl carbonates, uraninite, gummite in float, you are in the right ground. Field specimens usually show a crusts, granular, acicular aggregates habit, so train your eye for that shape before scanning the outcrop.

Common questions

How do you identify voglite?+

Mohs hardness is 2.5. It typically shows a vitreous luster. The streak is pale green. Common colors include emerald green, grass green.

Where is voglite found?+

Notable localities include Jáchymov, Czech Republic; Schneeberg, Germany; Red Canyon, Utah, USA.

How much is voglite worth?+

Typical asking prices fall in the range of $50-300 per small specimen. Quality, size, and provenance can move individual specimens well outside that range.

Is voglite safe to handle?+

This mineral is radioactive. It contains toxic constituents. Contains uranium and copper. Handle with gloves, avoid inhaling dust or powder, and wash hands thoroughly after handling. Store in a labeled, shielded container away from living areas. Handle with care, avoid grinding or breathing dust, and store separately.

What rocks look like voglite?+

Voglite is most often confused with Liebigite, Andersonite. A quick hardness test and a streak check separate the look-alikes faster than color alone.

What minerals are found with voglite?+

Voglite commonly co-occurs with Uranyl carbonates, Uraninite, Gummite. Spotting any of these in float or country rock is a useful trip signal.

What kind of rock does voglite form in?+

Voglite typically forms in oxidized uranium ore deposits. Working float back to the host body is the standard way to chase a fresh occurrence.

What is voglite used for?+

Voglite is used in collector.

Find voglite on the map

RockHoundR shows mapped rockhounding spots, access rules, and lets you log every find.