Gypsum

  
 
  
 
  
 
  
 
  
 
  
 
  
Origin: Las Salinas Halite mine, near Otume Village, south of Pisco, Ica Department, Peru
Sample size: 14 x 7 x 5.5 cm matrix, crystals to 4.5 cm (top), 11.5 x 6.5 x 6.5 cm matrix, crystals to 3.5 cm (2nd row), 13 x 9 x 4.5 cm matrix, crystals to 3.5 cm (3rd row), 5.5 x 4.5 x 4 cm (4th row), 9.5 x 6 x 4.5 cm (5th row),  5.5 x 3.5 x 4 cm matrix (6th row), 9 x 6 x 6 cm matrix (bottom)
 
 
Origin: Jet, Oklahoma, U.S.A.
Sample size: 12.5 x 6 x 3.5 cm
 
  
Origin: Las Salinas Halite mine, near Otume village, south of Pisco, Ica Department, Peru
Sample size: 9.5 x 4 x 5.5 cm
 
  
Colourless transparent selenite
Origin: Clarksville, Tennessee, U.S.A.
ex Rick Russell collection
Sample size: 10 x 7.5 x 3.5 cm
 
Origin: Tsumeb, Namibia
Sample size: 7 x 2 x 2 cm
Owner: John Schneider
Photo: John and Mark Schneider
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

  
  
Doubly terminated group of white gypsum blades forming a "bowtie" on a tan matrix associated with blue copper sulfosalts.
Origin: Cavnic, Maramures, Romania
Ex. Isaias Casanova collection
Sample size: 7 x 6 x 5 cm
 
  
Bright, untarnished dendritic copper frozen in clear selenite. The largest cluster is about 0.9 cm.
Origin: Sahuarita Mine, Sahuarita, near Tucson, Arizona, U.S.A.
Ex. Keith Hayes collection
Sample size: 6.5 x 2.5 x 0.9 cm
 

Photo courtesy of: 

John Veevaert, Trinity Mineral Co

Trinityminerals.com

 

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