Spinel

  
 
  
 
  
Origin: Morogoro, Tanzania
Sample size: 4.6 x 4.3 x 4.1 cm (top), 4.1 x 3.9 x 2.5 cm (2nd row), 1.6 x 1.6 x 1.6 cm (bottom)
 
  
 
  
  
Spinel on calcite
  
Origin: Mogok, Mandalay, Burma
Sample size: 6.7 x 4.4 x 2.9 cm (top), 7.2 x 6.0 x 4.1 cm (2nd/3rd row), 1.0 x 0.9 x 0.8 cm (4th/bottom row)
 
  
Spinel on clinohumite
Origin: Luc Yen, Yen Bai Province, Vietnam
Sample size: 2.5 x 2.2 x 1.9 cm
 
Sapphire
Origin: Ratnapura, Sri Lanka
Sample size: 2.5 x 0.4 x 0.4 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

Origin: Big Maria Mtns., Riverside Co., California, U.S.A.
Ex. Don Belsher collection
Sample size: two partial black spinel crystals, the largest 3 x 3.2 x 2 cm
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

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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