21. :: : I second PrimeHunter's suggestion about the Wikipedia : WikiProject Gemology and Jewelry project. 22. The collection contains works published from 1496 to the present, encompassing the history and modern development of gemology . 23. Further expanding that outreach, in Japan, he launches the first GIA gemology courses in the following year. 24. In Spring 1981, he publishes his first issue of Gems & Gemology in an expanded and redesigned format. 25. City officials said that Tirmizi was reluctant to cut his gemology class until the mayor invited his teachers as well. 26. In gemology / gemmology, the gemstone refractometer is one the fundamental pieces of equipment used in a gemological laboratory. 27. It hosts the Texas Institute of Jewelry Technology, a well-respected school of gemology , horology, and jewelry. 28. Now in its 12th edition ( 4th printing ), it is one of the most widely read textbooks in gemology . 29. Hughes has worked both in lab gemology and also in the wholesale, retail and mining sides of the gem business. 30. The "'assessment department "'focuses on assessing the quality of Wikipedia's Gemology and Jewelry articles.
