Nasonite

Nasonite and hancockite

Origin: Franklin, Sussex Co., New Jersey, U.S.A.

Owner: Lou Perloff

Microscopic image

 

Photo courtesy of: 

Photo-Atlas of Minerals

  

  

  

This specimen has abundant crystalline nasonite over about 40% of the specimen! Also present are small sprays of what appear to be pectolite and a 2 mm spray of bladed crystals which are of an unknown species referred to in the book on Långban as the "orthorhombic colorless crystals". This specimen clearly shows the rounded face development on the 0.5 cm crystal on the left that also has a partial covering of manganese oxides.

Origin: Långban, Sweden
Harry von Eckermann Collection

Sample size: 7 x 5.5 x 4 cm

 

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