Perloffite

Perloffite on ludlamite

 

Origin: Big Chief mine, Keystone, Pennington Co., South Dakota, U.S.A. (type locality)

Owner: Lou Perloff

Microscopic image

 

Origin: Spring Creek mine, Wilmington, South Australia, Australia

Owner: Lou Perloff

Microscopic image

 

Origin: Hagendorf, Bavaria, Germany

Owner: Lou Perloff

Microscopic image

 

Photo courtesy of: 

Photo-Atlas of Minerals

     

Jet black perloffite associated in vugs filled with light green ludlamite (right), associated with kryzhanovskite

  

This specimen is loaded with dozens of dark green, very micro (about 0.2 mm) bladed crystals on a white matrix so you can see them easily. Associated with the perloffite is black kryzhanovskite
  

The Perloffite is a single dark green blade perhaps 0.2 mm on a black and bronz dark brown matrix of kryzhanovskite and probably phosphoferrite matrix.

Origin: Hagendorf Sud, Oberpfälzer Wald, Bayern, Germany

Sample size: 2 x 1 x 1 cm (top), 3 x 2 x 2 cm (2nd row), 4 x 1.5 x 1.5 cm (bottom)

 

  

 

  

Ludlamite and huréaulite matrix with jet black, lustrous and spike-like crystals of perloffite

  

Dark black micro crystals to about 0.5 mm in ludlamite/vivianite matrix

Origin: Big Chief mine, Pennington Co., South Dakota, U.S.A. (type locality)

Sample size: 1.5 cm x 8 mm x 5 mm, crystals to 0.75 mm (top), 1 cm x 8 x 7 mm, crystals less than 1 mm (2nd row), 2.5 x 2.5 x 1 cm (bottom)

 

  

Deep green, prismatic microcrystals. The malachite is also a deep green colour but occurs in spherical microcrystals.

Origin: Spring Creek Mine, Wilmington, Flinders Range, South Australia, Australia

Ex. DeVito collection

Sample size: 2 x 2 x 1.5 cm

 

Photo courtesy of: 

Tan to khaki  crystal groups and crusts. Crystals to 1 mm.

Origin: Spring Creek Copper Mine, Wilmington, SA, Australia

Sample size: micromount

 

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Perloffite with cuprite, copper and quartz

Origin: Spring Creek Mine, Wilmington, South Flinders Ranges, Flinders Ranges, South Australia, Australia

Sample size: field of view 3 mm

Sample owner: Steve Sorrell

 

 

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