Place of Origin
Shanghai, China
Gemstone Type
Synthetic (lab created)
Gemstone Color
All kinds of colors
Gemstone Size
Diameter 1~120mm
Gemstone Weight
Actual weighing
Optical Special Effects
Color Change
Application
Watch glass and optical, Laser Device
Material
Al2o3 Single Crystal
Orientation
A-Axis within 5° E-vector parallel to C-Axis
EndConfiguration
flat/flat or Brewster/Brewster ends
Absorption Coefficence
0.5~6.0cm-1
Crystal structure
Hexagonal a=4.758, c=12.991
Fluorescence lifetime
3.2us (T=300K)