Focusing Prism Spectroscope

If you have been having problems with a fixed focus spectroscope this may be the solution you are looking for.

This spectroscope has been used throughout the world for more than 35 years & is recognized and respected by gemmologists & gemmological teaching centers worldwide.

It is an ideal instrument for a small gemmological kit, or is easily carried in a pocket.

Perfect for use at antique fairs, for field use or general study purposes.

Specifications:

* Size: Length: 75mm (closed)

* Diameter : 17.5mm

* Material: Optical glass, Powder coated aluminium body