First Field Guide to Gemstones of Southern Africa

Avisarme cuando se agregue el libro

Sasol First Field Guide to Gemstones of Southern Africa is a fascinating guide to the gemstones of the region. Full-colour photographs and easy-to-read text will help the beginner and budding naturalist to identify the more common gemstones that occur in southern Africa, discover where they are found, and learn about their unusual features.

Rocks & Minerals Nature

Este libro no está disponible por el momento.

111 páginas impresas

Publicación original: 2011
Año de publicación: 2011
Editoriales: Penguin Random House South Africa, Struik Nature

Citas

Ирина Осипенкоcompartió una citahace 2 años
There are three basic methods of copying gemstones:
- Me gusta
- Comentar
- Compartir
  Facebook
  Twitter
  Copiar enlace
- Reportar
Ирина Осипенкоcompartió una citahace 2 años
The traditional method of panning is still practised by many communities around the world such as in Sri Lanka, where sapphires are panned from rivers. Panning involves sifting through deposits of sand and gravel. The swirling action of water is used to wash away lighter material, leaving behind only the heavier material, including any gemstones.
- Me gusta
- Comentar
- Compartir
  Facebook
  Twitter
  Copiar enlace
- Reportar