Gem Tools and Books

For Students and Professionals

Armstrong Gemmology produce a small range of useful gemological tools, suited to the gemology student and seasoned professional gemologist alike. The Photoatlas of Gemstone Spectra for Gemology Students is a valuable resource of gemstone absorption spectra photographs illustrating what you actually see rather than a drawn or computer generated rendition.

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Image of a Photoatlas of Gemstone Spectra

Photoatlas of Gemstone Spectra for Gemology Students CD - $14.95

This 3D animated book is designed to assist gemology students in learning how to recognize gem spectra from memory. Actual photographs of 40 gem absorption spectra as seen through the spectroscope. Helpful tips on getting the best out of your spectroscope.

Image of a Photoatlas of Gemstone Spectra

Photoatlas of Spectra download - $9.95

Photoatlas of Gemstone Spectra for Gemology Students as a Zip file download. On the order page, enter the email where you wish it to be sent and the files will be emailed after payment. In the shipping charge field, select option #3 ($0.00).

Gemological Dichroscope Filter

Dichroscope Filter - $25

London style Dichroscope Filter made from polarizing filter material. Easier to use than the Calcite Dichroscopes and essential for photographing dichroism of gems and minerals.
Light and easily transportable, ideal for use in the lab or field.

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Quarter Wave Retardation Plate

Quarter Wave Retardation Plate - $25

This quarterwave retardation plate is made from a plastic filter material and is better than the plates made with muscovite mica. It is an advanced gemological tool used to determine the Optic Sign of gems and minerals with the Polariscope. Full instructions included.

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