Kosnarite

Pale bluish crystals of kosnarite
Origin: Mt Mica mine, Paris, Oxford Co., Maine, USA
Picture size: 1.5 mm
Owner: Thomas Witzke
 

Photo courtesy of: 

Thomas Witzke

Institut für Mineralogie und Lagerstättenlehre
Aachen, Germany

 

  
Kosnarite crystals to 0.5 mm coating on lime to yellow coloured montebrasite
Origin: Limoeiro mine, Minas Gerais, Brazil
Sample size: 14 x 8 x 6 cm
 
    
Kosnarite on albite
     
Kosnarite on albite
  
  
Kosnarite with jahnite
     
Kosnarite on albite with ushkovite (right)
 
  
Origin: Jenipapo district, Itinga, Minas Gerais, Brazil
Sample size: top 4 x 4 x 2 cm, crystals to 3 mm, 2nd row 4 x 3 x 1 cm, crystal to 3 mm
3rd/4th row 3 x 2.5 x 2 cm, crystals about 0.75 mm, 5th row 2.5 x 2 x 2 cm, crystals to 0.75 mm,
6th row/bottom 6 x 5 x 5 cm, crystals to 3 mm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

  
 
  
 
  
 
  
Kosnarite on albite
Origin: Jenipapo district, Itinga, Minas Gerais, Brazil
Sample size: 2 x 1.5 x 1.5 cm (top left), 2 x 1 x 0.5 cm (top right), 4.5 x 4 x 3 cm (2nd row), 5 x 5 x 4 cm (3rd/4th row), 5 x 3.5 x 3 cm (bottom)
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

  
 
  
 
  
Origin: Itinga Mine, Minas Gerais, Brazil
Sample size: 2.5 x 1.8 x 1.6 cm (top), 2.5 x 1.8 x 1.4 cm (2nd/3rd row), 2 x 1.5 x 1.1 cm (bottom)
 
  
  
This specimen is mainly formed by albite on which there is the rare kosnarite. The kosnarite crystals are 1 mm and are all located on the top of the albite.
  
  
Origin: Taquaral, Minas Gerais, Brasil
Ex. Alessandro Genazzani collection
Sample size: 2 x 2 x 2.5 cm (top/2nd row), 1.2 x 1 x 1 cm (3rd/bottom row)
 

Photo courtesy of: 

John Veevaert, Trinity Mineral Co

Trinityminerals.com

Page 2

Back to Alphabetical list Physical, chemical and crystallographic description Optical properties/Thin sections SEM images TEM images vibrational spectra description IR spectra Raman spectra N-IR spectra F-IR spectra IES spectra