Preobrazhenskite

  
White to clear radial, acicular hydroboracite crystals to 4 mm on yellowish to clear prismatic preobrazhenskite (dominant mineral) crystals to 1 mm.
  
Murky slightly yellow, well developed prismatic crystals to 2 cm with halite. Ex. Kidwell collection
Origin: Lake Inder, Atyrau Oblast, Kazakhstan (type locality for preobrazhenskite)
Sample size: 7 x 5 x 3 cm
 
  
Origin: Inder Uplift, Western Kazakhstan, Russia (type locality)
Sample size: 6.5 x 6 x 4 cm (XRD confirmed)

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

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