Knygos.lt nariams
Knygos.lt nariams
- Išsiųsime per 12–18 d.d.
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- Autorius: Antoinette Matlins
- Leidėjas: GemStone Press
- ISBN-10: 0990415236
- ISBN-13: 9780990415237
- Formatas: 15.2 x 22.9 x 0.2 cm, minkšti viršeliai
- Kalba: Anglų
Atsiliepimai
Aprašymas
Explains in non-technical terms how to use the refractometer to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes. The approach is direct and practical, and its style is easy to understand. With this highly accessible guide booklet, anyone can begin to master gem identification using the refractometer.
- Autorius: Antoinette Matlins
- Leidėjas: GemStone Press
- ISBN-10: 0990415236
- ISBN-13: 9780990415237
- Formatas: 15.2 x 22.9 x 0.2 cm, minkšti viršeliai
- Kalba: Anglų
Explains in non-technical terms how to use the refractometer to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes. The approach is direct and practical, and its style is easy to understand. With this highly accessible guide booklet, anyone can begin to master gem identification using the refractometer.
Atsiliepimai