High metal quality polariscope mod. GEMPO with two polarized filters and conoscope lens.
This instrument will identify single or double refracting stones quickly and accurately, and will help distinguish between natural and synthetic amethyst, and separate jade and chalcedony from glass.
It can also assist in the detection of strain in diamonds prior to cutting.
The polariscope is used to test cut or rough gemstones.
Two polarising filters allow to observe the structure and optical properties of precious stones or minerals. The stone is tested by rotating it 360° between the crossed polarising filters.