- 21 Ely Place, London, EC1 N 6TD
- +44 (0)207 404 3334
- instruments@gem-a.com
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Monday - Friday
From 9:30 to 16:30 -
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£27.00
9 in stock
9 in stock
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This guide presents properties of the most common natural and synthetic green gems using four portable inexpensive instruments. A photo library of green gems in daylight and their LW/SW reactions are shown in the preceding pages with absorption spectra and CPF patterns.
We are open from Monday to Friday.
£27.00
9 in stock
£27.00
9 in stock
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