Berborite is a rare beryllium borate mineral typically found as small, thin, colorless platy crystals in alkaline pegmatite environments. Collectors should look for it in association with other beryllium-bearing minerals, often requiring microscopic examination for positive field identification due to its small crystal size.

Hardness

3.5

Mohs

Luster

Vitreous

Streak

White

Transparency

Transparent

mineralrare

Berborite

Hardness: 3.5
Luster: Vitreous
Streak: White
Transparency: Transparent

Is this berborite?

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 berborite with a known reference. Berborite sits at Mohs 3.5 — softer than the next harder reference, harder than the previous one.
2
Check the streak
Drag the specimen across an unglazed porcelain plate. Berborite leaves a white streak.
3
Read the luster
Hold the specimen under a strong light. Berborite 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: hexagonal. Typical habit: platy crystals, tabular, massive.

Often found alongside berborite

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

All properties

Chemical formula: Be₂(BO₃)(OH,F)·H₂O
Mohs hardness: 3.5
Density: 2.44 g/cm³
Colors: Colorless White
Streak: White
Luster: Vitreous
Transparency: Transparent
Crystal system: Hexagonal
Crystal habit: Platy Crystals, Tabular, Massive
Cleavage: Perfect On {0001}
Rarity: Rare
Uses: Collector
Host rock: Alkaline Pegmatites
Typical price: $50-300 per specimen

Where rockhounds find berborite

Classic worldwide localities

Kola Peninsula, Russia
Långban, Sweden

Field-hunting tip

Look in alkaline pegmatites country — that is the host setting where berborite typically forms. If you start seeing hambergite, fluorite, calcite in float, you are in the right ground. Field specimens usually show a platy crystals, tabular, massive habit, so train your eye for that shape before scanning the outcrop.

Common questions

How do you identify berborite?+

Mohs hardness is 3.5. It typically shows a vitreous luster. The streak is white. Common colors include colorless, white.

Where is berborite found?+

Notable localities include Kola Peninsula, Russia; Långban, Sweden.

How much is berborite 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 minerals are found with berborite?+

Berborite commonly co-occurs with hambergite, fluorite, calcite. Spotting any of these in float or country rock is a useful trip signal.

What kind of rock does berborite form in?+

Berborite typically forms in alkaline pegmatites. Working float back to the host body is the standard way to chase a fresh occurrence.

What is berborite used for?+

Berborite is used in collector.

Find berborite on the map

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