Norbergite

Orange-yellow crystal fragments in marble

Origin: Pargas, Finland

Sample size: 2 x 5 cm

 

Photo courtesy of: 

  

Origin: Piukkala, near Pargas, Finland

Sample size: 2.1 x 2.7 cm. Numerous orange to orange-brown Norbergite dipyramidal crystals in white matrix. Some crystals up to 2 mm

 

  

This specimen of calcite has several rounded crystals of honey yellow norbergite and at least one crystal of ruby red spinel though most are still encased in the calcite. The large exposed crystal of norbergite is 0.6 cm across.

  

This specimen of calcite has several sharp crystals of honey yellow norgbergite to 0.5 cm across. There are also several small crystals of ruby red spinel present though most are still encased in the calcite. The norbergite crystal on the right side of the specimen is sheared.

  

 

  

 

  

 

  

Norbergite on calcite

Origin: Oak Saung Tang, Mogok, Mandalay Div., Myanma, Burma

Sample size: 5.6 x 4.3 x 4 cm (top), 4 x 3 x 1.7 cm (2nd/3rd row), 3.8 x 3 x 2.3 cm (4th row), 3 x 2.1 x 1.9 cm (5th row), 3 x 2.3 x 1.4 cm (6th row), 3.2 x 2 x 1.6 cm (bottom)
 

 

Photo courtesy of: 

  

Yellow, crude crystal grains to 3 mm in calcite matrix

Origin: Cardiff Uranium mine, Ontario, Canada
Ex. Polak collection

Sample size: 5 x 3 x 2 cm

 

Photo courtesy of: