Lawsonite

  
Origin: Reed Station, Tiburon, Marin Co., California, USA
Sample size: 7.2 x 6 cm specimen of glaucophane schist with a heavy druse of lawsonite crystals to 0.7 cm across.
 
  
 
  
 
  
 
  
 
  
 
  
 
  
Origin: Reed Ranch Road, Marin Co., California, USA (type locality)
Sample size: 6 x 5.5 x 2.1 cm (top/2nd row), 8.5 x 4.5 x 1.2 cm (3rd row), 8 x 6 x 1.3 cm (4th/5th row), 6 x 4.5 x 1.8 cm (6th row), 6.5 x 5 x 3.5 cm (7th/8th row), 8.5 x 6 x 3.8 cm (9th/10th row), 26.5 x 15 x 5 cm (bottom)
 

Photo courtesy of: 

John Veevaert, Trinity Mineral Co

Trinityminerals.com

 

  
White to light blue square, tabular crystals to 1.5 cm in glaucophane schist.
Origin: Tiburon Peninsula, Marin Co., California, United States (type locality)
Sample size: 8.5 x 6 x 3.5 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

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