Aktashite


Metallic gray aktashite
Origin: Moctezuma, Mun. de Moctezuma, Sonora, Mexico
Picture size: 5 mm
Owner: Thomas Witzke

Photo courtesy of: 

Thomas Witzke

Institut für Mineralogie und Lagerstättenlehre
Aachen, Germany

 

  
Black crude flattened crystals to 0.5 cm on calcite matrix. One crystal is about 0.2mm aside a larger grain. The crystal shows good forms of a modified dipyramid. Associated with unidentified light green crust, which may be malachite, but is hard to tell with a calcite matrix.
Origin: Moctezuma, Sonora, Mexico
Ex. Kidwell collection
Sample size: 3 x 2.5 x 2 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

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