Gems of the world

"Guide to the identification and properties of precious and semiprecious gems, novelty stones, agates and crystals. Includes the geology, chemistry of gemstones, what to look for when buying gems and how to care for them, plus information on the diamond industry."--

שנה

2017

שפה

English

מהדורות

2

עמודים

256

ISBN

9780228100072

מקור הנתונים: Wikidata