Manjiroite

  
Origin: Arizona, U.S.A.
Sample size: 3.8 x 5.6 cm specimen. Dark brownish black massive sample of manjiroite
 

Photo courtesy of: 

John Veevaert, Trinity Mineral Co

Trinityminerals.com

 

Origin: Tombstone, Tombstone District, Cochise Co., Arizona, USA
Picture size: 5 mm
Owner: Thomas Witzke
 

Photo courtesy of: 

Thomas Witzke

Institut für Mineralogie und Lagerstättenlehre
Aachen, Germany

 

  
Manjiroite altering to todorokite with calcite
Origin: Smartt Mine, Kalahari Fields, South Africa
Ex. W. Israel collection
Sample size:
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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