Brizziite is an extremely rare sodium antimony oxide mineral originally discovered in the antimony mines of Tuscany, Italy. It typically occurs as small, transparent tabular crystals and is often found associated with other secondary antimony minerals like senarmontite.

Hardness

Mohs

Luster

Vitreous

Streak

White

Transparency

Transparent

mineralrare

Brizziite

Hardness: 2
Luster: Vitreous
Streak: White
Transparency: Transparent

Is this brizziite?

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

Often confused with

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

mineral

Senarmontite

Mohs 2.5

How to tell apart: Luster reads vitreous on Brizziite and adamantine on Senarmontite.

How to tell apart: Luster reads vitreous on Brizziite and adamantine on Valentinite.

Compare →

Often found alongside brizziite

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

All properties

Chemical formula: NaSbO₃
Mohs hardness: 2
Density: 3.58 g/cm³
Colors: Colorless White
Streak: White
Luster: Vitreous
Transparency: Transparent
Crystal system: Trigonal
Crystal habit: Tabular Crystals
Cleavage: Perfect
Rarity: Rare
Uses: Collector
Host rock: Antimony-rich Hydrothermal Veins
Typical price: $50-300 per specimen

Where rockhounds find brizziite

Classic worldwide localities

Italy

Field-hunting tip

Look in antimony-rich hydrothermal veins country — that is the host setting where brizziite typically forms. If you start seeing stibnite, senarmontite, valentinite 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 brizziite?+

Mohs hardness is 2. It typically shows a vitreous luster. The streak is white. Common colors include colorless, white.

Where is brizziite found?+

Notable localities include Italy.

How much is brizziite 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.

Is brizziite safe to handle?+

It contains toxic constituents. Contains antimony, which is toxic if ingested or inhaled as dust. Handle with care and wash hands after contact. Handle with care, avoid grinding or breathing dust, and store separately.

What rocks look like brizziite?+

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

What minerals are found with brizziite?+

Brizziite commonly co-occurs with Stibnite, Senarmontite, Valentinite. Spotting any of these in float or country rock is a useful trip signal.

What kind of rock does brizziite form in?+

Brizziite typically forms in antimony-rich hydrothermal veins. Working float back to the host body is the standard way to chase a fresh occurrence.

What is brizziite used for?+

Brizziite is used in collector.

Find brizziite on the map

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