Gypsum

  
Origin: Logan County, Oklahoma, U.S.A.
Sample size: 9.2 x 5.5 x 1.5 cm
 
  
 
     
Origin: Naica, Chihuahua, Mexico
Sample size: 19.8 x 4.3 x 3.6 cm (top/2nd row), 13.5 x 4.0 x 1.8 cm (bottom)
 
  
Origin: Shelford Quarry, Sturry, Canterbury, Kent, England
Sample size: 3.7 x 2.4 x 1.5 cm
 
  
  
Variety selenite (many fishtail twinned)
Origin: Bad Hall, Innsbruck, Tyrol, Austria
Ex. Wein collection
Sample size: 10.5 x 8.8 x 5.3 cm
 
  
Origin: Daye Mine, Hubei Province, China
Sample size: 8.2 x 5.9 x 5.2 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

Back to Page 1     Page 2     Page 3     Page 4     Page 5     Page 6     Page 7     Page 8     Page 9     Page 10     Page 11     Page 12     Page 13

Page 14     Page 15     Page 16     Page 17     Page 18     Page 19     Page 20     Page 21     Page 22     Page 23     Page 24     Page 25

Page 26    Page 27     Page 28     Page 29     Page 30     Page 31     Page 32     Page 33     Page 35     Page 36     Page 37     Page 38

Page 39     Page 40     Page 41

Back to Alphabetical list Physical, chemical and crystallographic description Optical properties/Thin sections SEM images TEM images vibrational spectra description IR spectra Raman spectra N-IR spectra F-IR spectra IES spectra