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Raman spectra of sapphire sample ML-03 from Madagascar

 
2023, 25(5): 73-82.
Gemmological and Spectroscopic Characteristics of Blue Sapphire from Madagascar .

Figures of the Article

  • Rough sapphires (a) and sliced sapphires (b) samples from Madagascar
  • External features of rough sapphire samples from Madagascar: (a) triangular growth patterns; (b) triangular growth patterns and small pits; (c) surface pits
  • Inclusion characteristics of sapphire samples from Madagascar: (a) parting induced by lamellar twinning in sample ML-01; (b) triangular parting pattern embedded with green substance in sample ML-01; (c) directionally arranged needle-like inclusions in sample ML-01; (d)reddish brown flaky solid and rectangular transparent inclusion in sample ML-03; (e)square-shaped transparent solid inclusions in sample ML-03; (f)gas-liquid two-phase inclusion in sample ML-01
  • Raman spectra of sapphire sample ML-03 from Madagascar
  • Raman spectra of inclusions in sapphire sample ML-03 from Madagascar: (a)zircon; (b)hematite
  • Raman spectra of needle-like inclusions in sapphire sample ML-01 from Madagascar: (a)hematite; (b)ilmenite
  • Raman spectra of diaspore in sapphire sample ML-01 from Madagascar
  • Infrared reflectance spectra of sapphire samples from Madagascar
  • Infrared transmittance spectra of sapphire samples from Madagascar
  • UV-Vis-NIR absorption spectra of sapphire samples from Madagascar

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