Strunz classification 6.AB.05 Space group Pbca | Formula(repeating unit) Be2BO3OH Crystal system Orthorhombic | |
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Crystal class Dipyramidal (mmm)H-M symbol: (2/m 2/m 2/m) | ||
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.
Occurrence
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.
References
Hambergite Wikipedia(Text) CC BY-SA