Balliranoite is a rare mineral belonging to the cancrinite group, typically found within volcanic ejecta associated with the Somma-Vesuvius complex. It forms small, prismatic crystals that require microscopic examination or expert identification due to their visual similarity to other framework silicates.

Hardness

5-6

Mohs

Luster

Vitreous

Streak

White

Transparency

Transparent

mineralrareCancrinite Group family

Balliranoite

Hardness: 5-6
Luster: Vitreous
Streak: White
Transparency: Transparent

No image

Is this balliranoite?

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 balliranoite with a known reference. Balliranoite sits at Mohs 5-6 — softer than the next harder reference, harder than the previous one.
2
Check the streak
Drag the specimen across an unglazed porcelain plate. Balliranoite leaves a white streak.
3
Read the luster
Hold the specimen under a strong light. Balliranoite typically shows a vitreous luster.
4
Match the color range
Compare against the expected color range: colorless, white, yellowish.
5
Look at form & habit
Crystal system: hexagonal. Typical habit: prismatic crystals.

Often confused with

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

Often found alongside balliranoite

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

All properties

Chemical formula: (Na,Ca,K)₈(Si₆Al₆O₂₄)(Cl,CO₃,SO₄,OH)₂
Mohs hardness: 5-6
Density: 2.44 g/cm³
Colors: Colorless White Yellowish
Streak: White
Luster: Vitreous
Transparency: Transparent
Crystal system: Hexagonal
Crystal habit: Prismatic Crystals
Cleavage: Perfect
Rarity: Rare
Uses: Collector
Host rock: Volcanic Ejecta
Typical price: $50-300 per specimen

Where rockhounds find balliranoite

Classic worldwide localities

Monte Somma, Italy
Vesuvius, Italy

Field-hunting tip

Look in volcanic ejecta country — that is the host setting where balliranoite typically forms. If you start seeing nepheline, leucite, pyroxene in float, you are in the right ground. Field specimens usually show a prismatic crystals habit, so train your eye for that shape before scanning the outcrop.

Common questions

How do you identify balliranoite?+

Mohs hardness is 5-6. It typically shows a vitreous luster. The streak is white. Common colors include colorless, white, yellowish.

Where is balliranoite found?+

Notable localities include Monte Somma, Italy; Vesuvius, Italy.

How much is balliranoite worth?+

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

What rocks look like balliranoite?+

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

What minerals are found with balliranoite?+

Balliranoite commonly co-occurs with Nepheline, Leucite, Pyroxene. Spotting any of these in float or country rock is a useful trip signal.

What kind of rock does balliranoite form in?+

Balliranoite typically forms in volcanic ejecta. Working float back to the host body is the standard way to chase a fresh occurrence.

What is balliranoite used for?+

Balliranoite is used in collector.

Find balliranoite on the map

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