Twin plane at one end of an unusual synthetic pink sapphire with artificial orange stains and dendrite patterned in induced fissures. Fine needles were seen along this twin plane and could easily cause a gemologist to reach the conclusion that the stone was natural.
Synthetic Sapphire • Verneuil • Enhancements: () • Lighting Conditions: Diffuse Light Field + Immersion + Crossed Polars
Photographer: Richard W. Hughes •
Image Number: A-001-3404-2 • Date Posted: 26 November 2015
Eppler, W.F. (1964) Polysynthetic twinning in synthetic corundum. Gems & Gemology, Vol. 11, No. 6, Summer, pp. 169–175; RWHL*.
Hughes, R.W. (1997) Ruby & Sapphire. Boulder, CO, RWH Publishing, 512 pp.; RWHL*.
Hughes, E.B., Chankhanatha, C. et al. (2016) Padparadscha or pretender: Examination of an unusual pink-orange sapphire. Australian Gemmologist, Vol. 25, No. 11–12, pp. 389–392; RWHL.