Schumann W: Gemstones of the World
Newly Revised Fifth Edition.
Truly the ultimate one-volume book every hobbyist, jeweler, jewelry maker, and rockhound will ever need! Chock-full of more than 1,500 full-color photos showcasing each precious and semiprecious stone in both its rough and polished state, this bestselling reference book from leading geology expert Walter Schumann will be your go-to identification guide.
Following the spectacular success of the first four editions of Gemstones of the World, the revised fifth edition exhibits important updates and a beautiful new cover. All the gemstones ever discovered are treated here in their many variations. More than 1,500 full-color photos showcase each precious and semiprecious stone in both its rough natural state and its polished and cut renditions. Each entry offers complete information on a stone's formation and structure; physical properties and characteristics; and methods of working, cutting, and polishing.
You'll find full treatments of lesser-known gems and minerals-from andalusite to vesuvianite-and a special section devoted to rocks as precious stones, including alabaster, onyx, obsidian, and fossils. Organic gem materials such as coral, ivory, amber, and pearl are also covered, along with more recently discovered stones like charoite. Additionally, this all-inclusive rocks and minerals book includes imitations, synthetics, and combined stones. Charts and tables help you identify unknown gemstones and-when you're in the market-how to check for authenticity.
Whether you're a beginner rock enthusiast or geologist, or are looking for a crystal book to support your spirituality practice, Gemstones of the World will bring new beauty and wisdom to your bookshelf.
Following the spectacular success of the first four editions of Gemstones of the World, the revised fifth edition exhibits important updates and a beautiful new cover. All the gemstones ever discovered are treated here in their many variations. More than 1,500 full-color photos showcase each precious and semiprecious stone in both its rough natural state and its polished and cut renditions. Each entry offers complete information on a stone's formation and structure; physical properties and characteristics; and methods of working, cutting, and polishing.
You'll find full treatments of lesser-known gems and minerals-from andalusite to vesuvianite-and a special section devoted to rocks as precious stones, including alabaster, onyx, obsidian, and fossils. Organic gem materials such as coral, ivory, amber, and pearl are also covered, along with more recently discovered stones like charoite. Additionally, this all-inclusive rocks and minerals book includes imitations, synthetics, and combined stones. Charts and tables help you identify unknown gemstones and-when you're in the market-how to check for authenticity.
Whether you're a beginner rock enthusiast or geologist, or are looking for a crystal book to support your spirituality practice, Gemstones of the World will bring new beauty and wisdom to your bookshelf.
Tabella delle dimensioni
Bracciali, fermagli, cerchi, catene
| Vecchio | Circonferenza del polso |
|
Neonato |
9-12 cm |
|
6 mesi – 3 anni |
12-14 cm |
|
4 - 10 anni |
14-15 cm |
|
Adolescenti, Donne (XS) |
15-16cm |
|
Donne (M) |
16-17 cm |
|
Donne (XL) |
18-19 cm |
|
Uomini (M) |
18-20 cm |
|
Uomini (XL) |
21-22 cm |
Brevi istruzioni per misurare la dimensione del polso:
Avvolgi un metro a nastro o una corda senza stringere attorno al polso nel punto in cui desideri posizionare il braccialetto. Assicurati che aderisca perfettamente ma non si intasi. Leggi la circonferenza direttamente dal metro a nastro oppure misura la lunghezza della corda con un righello.
Un avviso:
A seconda dei gusti, la lunghezza del braccialetto può essere da 1 cm a 3 cm più lunga della circonferenza del polso misurata.
A seconda dei gusti, la lunghezza del braccialetto può essere da 1 cm a 3 cm più lunga della circonferenza del polso misurata.
Anelli per le dita
| Misura dell'anello | Diametro interno | Circonferenza interna |
|
48 |
15,3 mm |
48 mm |
|
50 |
15.9 mm |
50 mm |
|
52 |
16.6 mm |
52 mm |
|
54 |
17.2 mm |
54 mm |
|
56 |
17.8 mm |
56 mm |
|
58 |
18.5 mm |
58 mm |
|
60 |
19.1 mm |
60 mm |
|
62 |
19.7 mm |
62 mm |
|
64 |
20.4 mm |
64 mm |
|
66 |
21.0 mm |
66 mm |
Brevi istruzioni per misurare la misura dell'anello:
Metodo 1: misurare il diametro interno di un anello corrispondente
- Scegli un anello che si adatti bene.
- Posizionalo su un righello e misura il diametro interno (da un bordo interno all'altro).
- Confronta il diametro con la tabella per determinare la misura dell'anello.
Metodo 2: misurare la circonferenza del dito
- Prendi una sottile striscia di carta o un filo.
- Avvolgilo attorno alla parte del dito in cui vuoi posizionare l'anello (non troppo stretto).
- Segna dove le estremità si incontrano.
- Misurare la lunghezza della striscia in millimetri. Questa è la circonferenza interna .
- Trova la taglia giusta nella tabella.
Suggerimenti:
- Misura la misura del tuo dito la sera poiché le dita si gonfiano leggermente durante il giorno.
- Se sei tra due taglie, scegli la taglia più grande.
- Assicurati che l'anello si adatti alla caviglia.
Prezzo di listino
CHF 30.90
CHF 30.90
Prezzo di listino
Prezzo scontato
CHF 30.90
CHF 30.90
Salva
/
- Spedizione gratuita a partire da CHF 150
