Penfieldite

     

 

Brown-yellow penfieldite with blue boleite (bottom photo)

  

 

  

 

  

Penfieldite with blue boleite

  

Origin: Margarita mine, Sierra Gorda, Chile

Sample size: 6 x 5 x 4 cm (top/2nd row), 7 x 7 x 3 cm (3rd row), 6.5 x 5 x 3 cm (4th row), 9 x 5 x 4 cm (5th row/bottom)

 

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Specimen with numerous crystals of penfieldite to 0.6 cm in length. Boleite occurs as scattered micro crystals and as aggregates of micro crystals. There is also some galena in the heart of the quartz rich matrix.

  

Glassy, clear crystals of penfieldite to 0.2 cm with micro boleite, ex. Keith Hayes collection

Origin: Sierra Gorda, Antofagasta, Chile

Sample size: 5.5 x 4. x 3 cm (top/2nd row), 4.6 x 4.3 x 3.6 cm (3rd/4th row), 5.5 x 4.2 x 3 cm (5th/6th row), 5.2 x 4.1 x 3.2 cm (7th row), 8.5 x 5.9 x 3.0 cm (8th/bottom row)
 

 

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