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Home / Gem Library / Gemstones Varieties / Hambergite November 21, 2017

Natural Hambergite

Hambergite is named after the Swedish Mineralogist, Axel Hamburg. It forms in flattened prismatic orthorhombic crystals with vitreous to dull luster. It is a brittle mineral with perfect cleavage in one direction and conchoidal to uneven fracture.


  • There are 2 Hambergite gemstones available at Multicolour.com
  • Hambergite(s) are organized in the following categories: Single,  gemstones.

Hambergite Profile

Color information: Colorless, white, grayish white, yellowish white.
Refractive Index: 1.55 - 1.63
Chemical Composition: Be2 BO3 (OH,F)
Hardness: 7.5
Density: 2.35 - 2.37
Crystal Group: Orthorhombic
Ocurrence: Anjanabanoana, Madagascar; Molo, Myanmar; India; Czech Republic; California, U.S.A.; Langesundsfjord, Norway.
Sign of the Zodiac: N/A
Month of the year: N/A
Hambergite
Hambergite was originally discovered in southern Norway but that material was not clean enough to be considered gem material. The most important current source is probably in Anjanabanoana, Madagascar. Recently, some nice material has also been unearthed in Molo, Myanmar, but most of the crystals are small.

Hambergite has the lowest known density of any gem with such a high birefringence (.072). These unique properties make it easy to identify. Stones have little fire any may resemble quartz but with the high birefringence, hambergite is nearly impossible to misidentify.

References:

R. Webster, 1994, Fifth edition, Gems Their Sources, Descriptions And Identification, Reed Educational and Professional Publishing Ltd.

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Hambergite range/
Hambergite Single
Hambergite Single Fancy Eye clean
Size: 17.30 X 4.60 MM
Weight: 1.520 CTS
Shape: Fancy
Clarity: Eye clean
Usually ships within 24 hours
RECOMMENDED
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USD 188.40
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Hambergite Single
Hambergite Single Oval Slightly included
Size: 9.50 X 5.80 MM
Weight: 1.060 CTS
Shape: Oval
Clarity: Slightly included
Usually ships within 24 hours
RECOMMENDED
OUR PRICE
USD 131.00
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