Your search for "kongsberg" revealed the following:
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Cornetite #18928
Sparkling deep blue cornetite with under tones of sky blue and green. Large matrix with the cornetite coating on both sides with contact on one side. From Etoile Mine, Katanga, Democratic Republic of Congo
19.4 x 10.4 x 7 cm
Dem. Rep. of Congo
Katanga
Calcite #21883
Stunning copper in calcite from Keweenaw county, Michigan. Dogtooth calcite with a copper phantom. Ideal specimen for form and figure.
5.1 x 3 x 2.1 cm
USA
Michigan
Amethyst #18076
Beautiful arrangement of flowerlike scepters of amethyst. Photo: Jeff Scovil
3.3 x 2.2 x 1 cm
India
Madras
Calcite #15583
Very aesthetic round waves of lustrous grey calcite. Almost like sides display the wave formation. From the Cavnic Mine, Maramures County, Romania
3.1 x 3.1 x 2.8 cm
Romania
Maramures Co.
Tourmaline #18080
Tourmaline with Cleavlandite - Himalaya Mine, USA. Photo: Mia Dixon
8.4 x 3.6 x 2 cm
USA
California
Tanzanite #17398
Unique tanzanite crystal on matrix. Dark blue lustrous terminated tanzanite on a graphite matrix.
2.7 x 2.6 x 1.8 cm
Tanzania
Merelani
Tourmaline #18082
Tourmaline on Quartz - Jonas Mine, Brazil. Photo: Joe Budd
4.5 x 6.9 x 1.5 cm
Brazil
Jonas Mine
Citrine - Light #19105
Quartz crystal from the La Gardette Mine, Bourg d'Oisans, Isere, Thone-Alpes, France. Photographed by Mia Dixon
24.3 x 11 x 7.5 cm
France
Bourg d'Oisans