🎄 Christmas opening times 🎄
We will be closed from Monday 18th December 2023 to Tuesday 2nd January 2024.
The last shipping day this year is 3pm on Friday 15th December 2023.
Out of stock
Standard shipping fees £5+ may apply. For detail click here.
The Gem-A Diffraction Grating Spectroscope is an invaluable instrument, used to test coloured gem materials by observing their absorption spectra, producing a uniform, linear spectrum. The adjustable focus sharpens different parts of the spectrum to suit the user's eyesight. Both easy to use and portable.
We are open from Monday to Friday.