While testing this stone, this pair of crystals piqued our interest. Analysis with micro Raman identified the green crystal on the left as amphibole, and the crystal on the right as mica. A dusting of silk can also be seen in the background.
Natural Padparadscha Sapphire • Mozambique • Enhancements: None Detected (None) • Lighting Conditions: Dark Field + Blue Filter + Diffuse Fiber Optic
Photographer: E. Billie Hughes •
Image Number: A-004-9644-1 • Field of View = 2.5 mm • Date Posted: 25 September 2023
Hughes, R.W., Manorotkul, W. and Hughes, E.B. (2017) Ruby & Sapphire: A Gemologist's Guide. Bangkok, Lotus Publishing, 816 pp.; RWHL*.
Pardieu, V., Saeseaw, S. et al. (2015) "Low temperature" heat treatment of Mozambique ruby: Results report. Gemological Institute of America, 16 April, 34 pp.; RWHL*.