Wu Collection, Upper Volume Radical: Jade (yù) Character: Gan Kangxi Stroke Count: 8 Page 727, Entry 20 Classical citations: Tang Rhyme (Tangyun): Pronounced gan. Collected Rhymes (Jiyun), Rhyme Meetings (Yunhui), Correct Rhymes (Zhengyun): Pronounced gan. Explaining Graphs and Analyzing Characters (Shuowen Jiezi): Refers to langgan. Broad Rhymes (Guangyun): Refers to a beautiful stone, with a quality inferior to jade. Book of Documents (Shangshu), Tribute of Yu (Yugong): Records that its tribute items included qiu, lin, and langgan. Erya, Explaining Lands (Shidi): Records that the beautiful objects of the northwest region include the qiu, lin, and langgan of the Kunlun Mountains. Note: Langgan, shaped like a pearl. Also refers to a tree name. Rhyme Meetings (Yunhui): Records that the Kunlun Mountains have langgan trees. Compendium of Materia Medica (Bencao Gangmu): Records that liuli (a type of glass-like material) has five colors and is a treasure produced by fire-based techniques. Among them, the green variety can be used in medicine. Also, Rhyme Supplements (Yunbu): Pronounced jian. Cao Zhi, Beautiful Woman Chapter (Meinv Pian): Pulling up sleeves to reveal white hands, wearing gold rings on fair wrists. With gold sparrow hairpins inserted in the hair, and green langgan worn at the waist. Ring is pronounced xuan.