Сафир (Serbian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Сафир" in Serbian language version.

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bbc.co.uk

books.google.com

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gaaj-zenhokyo.co.jp

gemologyonline.com

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harvard.edu

adsabs.harvard.edu

  • Harman, Alang Kasim; Ninomiya, Susumu; Adachi, Sadao (1994). „Optical constants of sapphire (alpha-Al2O3) single crystals”. Journal of Applied Physics. 76 (12): 8032—8036. Bibcode:1994JAP....76.8032H. doi:10.1063/1.357922. 

lotusgemology.com

palagems.com

patents.google.com

  • USA Expired US3897529A, Ronald R Carr & Stephen D Nisevich, "Altering the appearance of corundum crystals", published 29 July 1975 
  • USA 988,230, August Verneuil, "Process of producing synthetic sapphires", published 28 March 1911 

randys-jewelry.com

sfgate.com

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si.edu

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si.edu

thenaturalsapphirecompany.com

tripod.com

famousdiamonds.tripod.com

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