1. Many jewelers also study gemology in order to become familiar with the physical properties of the gem stones with which they work.

2. Since the 1990s modern gemology in China has entered a new development stage.

3. A detail summary of material component and gemology characteristic is presented and the ore quality is undertaken a evaluation, which provide the data for rational development and utilization.

4. There have been a rapid development in the areas of the diamond resources prospecting, diamond mineralogy and diamond gemology .

5. Ultra-violet or violet light is re-emitted as blue or green light attributed to the presence of poly-nuclear aromatic molecules. ( Gemology , Cornelius S. Hurlbut, Jr. , Robert C.

6. The research of diamond have being promoting the development in the mantle mineralogy, material sciences and gemology etc.

7. There are a lot of other gem, jade, jadeite, fossil, chicken blood-stone, rocks and minerals and book, VCD, instrument about gemology. Welcome to look for you're favored.