Related Books
Language: en
Pages: 309
Pages: 309
Type: BOOK - Published: 2009 - Publisher: Majestic Press
Language: en
Pages: 0
Pages: 0
Type: BOOK - Published: 1982 - Publisher:
Language: en
Pages: 310
Pages: 310
Type: BOOK - Published: 1829 - Publisher:
Language: en
Pages: 232
Pages: 232
Type: BOOK - Published: 2003 - Publisher: Gem Guides Book Company
New edition with added chapters and sections. Provides all the information necessary for complete analysis and evaluation of any opal from a true gem. Properly
Language: en
Pages: 168
Pages: 168
Type: BOOK - Published: 1977 - Publisher: NAG Press
"Written especially for the opal collector and gemmology student, as well as for the opal miner or visitor to the opal fields, this bokk names every recorded op
