Corundrum var. Sapphire with some color change
Corundum deposit, Yingshan Co., Huanggang Pref.
7.1 x 5.6 x 5.6 CM (cabinet)
Post Tucson 2015
From a little known Chinese locality, These Corundum crystals are well formed and similar but noticeably distinct from the better known Madagascar specimens. Individual crystals reach 1.6 CM and are a blueish hue in daylight but have a more purple-red look in some artificial lights. The color change is subtle but clear. In very good condition, the crystals are well exposed and have a small amount of translucency at the edges.