Host: The Gemmological Society of Japan
Pages 16
There are a lot of gem deposit in YunNan province, China. Agates called ShiLinCaiYu and Huang Long Yu are highly evaluated in China. ShiLinCaiYu is a colourful agate. HuangLongYu is a yellow translucent chalcedony. Both are used for carving and their one of a kind characters are optimized.