gemlab.co.uk at J K Harris for professional gemmologists and students of gemmology.

Gemlab.UK Gemmological Research and Education

SPECTROSCOPY

Use of the Direct Vision Spectroscope with a Microscope

SPECTRA DATABASE

Images and Descriptions of Absorption and Emission Spectra

THROUGH MY SPECTROSCOPE

Spectra of special interest presented and discussed

COLOUR FILTERS

The application of colour filters in gem testing.

NEWS

An update on the latest additions or alterations to this site

ABOUT THE AUTHOR

John S. Harris Engraver and Gemmologist

DECLARATION OF COPYRIGHT

The images and text shown on this web site are the sole intellectual property of John S. Harris. and may not be copied, transmitted, or used in any way without permission.

Permission may be granted for non-profit use in education and research in which case please apply to John Harris at jsh@gemlab.co.uk

LINK The Scottish Gemmological Association www.scotgem.co.uk