Hambergite
A variety of Minerals
What is Hambergite?
Hambergite (Be2BO3OH) is a beryllium borate mineral named after Swedish explorer and mineralogist Axel Hamberg (1863–1933). The mineral occurs as white or colorless orthorhombic crystals.
Optical Properties
- Refractive Index
- 1.543-1.631
- Birefringence
- 0.071-0.074
- Pleochroism
- None
- Optical Character
- Biaxial positive
- Dispersion
- 0.015
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Hambergite before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Hambergite Localities Map
See where Hambergite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Key Characteristics
Formation of Hambergite
Hambergite occurs in beryllium bearing granite pegmatites as a rare accessory phase. It occurs associated with beryl, danburite, apatite, spodumene, zircon, fluorite, feldspar and quartz. It was first described by mineralogist and geographer W. C. Brøgger in 1890. The type locality is Salbutangen, Helgeroa, Langesundsfjorden, Larvik, Vestfold, Norway where it was found in a pegmatite dike of nepheline syenite composition.
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Quick Facts
Physical Properties
- Color
- Colourless, greyish, yellowish, colourless in transmitted light
- Hardness (Mohs)
- 7.5
- Density
- 2.365 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- Be2(BO3)(OH)
- Elements
- B, Be, H, O
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Hambergite FAQs
How do I identify Hambergite?
Hambergite can be identified by its hardness of 7.5 on the Mohs scale, Colourless color. Look for these key characteristics when examining specimens.
What color is Hambergite?
Hambergite typically appears in Colourless, greyish, yellowish, colourless in transmitted light. Color can vary depending on impurities and formation conditions.
How hard is Hambergite?
Hambergite has a hardness of 7.5 on the Mohs scale. This makes it a relatively hard mineral suitable for jewelry.
What is the formation of hambergite of Hambergite?
Hambergite occurs in beryllium bearing granite pegmatites as a rare accessory phase. It occurs associated with beryl, danburite, apatite, spodumene, zircon, fluorite, feldspar and quartz. It was first described by mineralogist and geographer W. C. Brøgger in 1890. The type locality is Salbutangen, Helgeroa, Langesundsfjorden, Larvik, Vestfold, Norway where it was found in a pegmatite dike of nepheline syenite composition.
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