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Hambergite

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JYJ1160696

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Description
Locality: 
Klåstad Quarry, Klåstad, Tjølling, Larvik, Vestfold og Telemark, Norway
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.5 × 2.5 cm
Description

Rare hambergite on matrix from the classic Klåstad Quarry, Tjølling, Larvik, Vestfold og Telemark, Norway. The specimen shows a well-defined, colourless to transparent hambergite crystal with a vitreous luster, clearly embedded in matrix. The crystal exhibits the typical prismatic habit known for this species.

Hambergite is a rare borate mineral, first described in 1890 and named in honour of Axel Hamberg (1863–1933), a Swedish geologist and mineralogist known for his work in physical geography and mineralogy. The species predates the IMA system and is therefore considered a grandfathered mineral (pre-IMA, no official IMA number assigned).

The mineral forms in granitic pegmatites, and Norwegian pegmatites are among the classic European occurrences. Hambergite is regarded as rare, with well-crystallized specimens being uncommon and primarily sought after by systematic collectors.

Mineral Data
What's on the rock

Hambergite

Formula: 
Be2(BO3)(OH)
Strunz: 
6.AB.05
Hardness: 
7.5
Type Locality: 
Salbutangen, Helgeroa, Langesundsfjorden, Larvik, Vestfold, Norway

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Postage Area Price
Germany: Insured parcel 6,20€
€6.20
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EU insured parcel - 15€
€15
Worldwide < 5000g insured parcel (UPS/TNT/DHL) 50€
€50
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