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, 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.