Rough Orange Sapphire, Flame Fusion Crystals flux Its fluorescence is so strong

Its fluorescence is so strong it has a striking blue glow in sunlight--this effectively gives it a color change effect

The stone weighs in at 31

This is an Ahura FirstDefender portable handheld raman spectrometer which we have retrofit for gemological usage

Copper laps tend to perform best when scored

which gives it a red fluorescence with strengh varying based on cobalt concentration and codopant types

Rough Orange Sapphire, Flame Fusion Crystals flux Its fluorescence is so strongThese are pieces of labmade orange sapphire grown by the now defunct Swiss Djeva corporation. These were grown with the flame fusion method, the oldest technique for growing large sapphire crystals, invented by the Auguste Verneuil in 1883. As typical for flame fusion sapphires, these pieces are all split to reduce internal stresses. With a hardness of 9 sapphire is ideal for use in all kinds of jewelry.