Rengeite

  
Glassy grey grains to 1mm in lavender jadeite matrix. This piece is a sawed slab and was part of the author's study material when this mineral was described.
Origin: Itoigawa, Niigata Prefecture, Honshu Island, Japan (type locality)
Sample size: 2.5 x 2.5 x 1cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

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