Wu Collection, Upper Volume Radical: Jade (yù) Nao Kangxi stroke count: 14 Page 738, Entry 03 Broad Rhymes (Guangyun), Collection of Rhymes (Jiyun), Rhyme Compendium (Yunhui), Correct Rhymes (Zhengyun): Pronounced nao (falling tone). Broad-Erudition (Boya): Agate is a type of stone inferior to jade. Broad Rhymes (Guangyun): States it is a precious stone. Expanded Rhymes (Zengyun): States it is a stone with patterns. Rhyme Compendium (Yunhui): States that the color of this precious stone resembles a horse's brain, hence the name. Cao Zhao, Discourse on the Investigation of Things (Gewulun): Produced in the northern regions, the southern frontiers, and the western frontiers; it is neither stone nor jade, hard yet brittle. Specimens containing shapes of people, objects, birds, or beasts are considered precious. Gu Jian, Records of Warming in the Sun (Fuxuanlu): There are many varieties of agate. There is one called cypress-branch agate, with patterns resembling cypress branches. There is one called layered-womb agate; viewed from the front it is white, viewed from the side it looks like congealed blood, displaying two colors on one object. There is one called banded agate, with alternating black and white layers. There is one called boxed agate, which is pitch black with a white line separating it. There is one called brocade-red agate, with a color like brocade. There is one called thread-wound agate, with red and white colors resembling threads; these are all precious varieties. There is one called water-paste agate, which has pale, water-like flow patterns. There is one called soy-spot agate, which is purple-red; these are of lower value. The method for identifying genuine agate is to rub it with wood; if it does not heat up, it is authentic. In the Sanskrit language, it is called molianlili, which corresponds to what is called agate in Chinese. Rhyme Supplement (Yunbu): Also rhymed with the sound gu (falling tone). Wang Can, Rhapsody on the Agate Bridle (Manaolefu): Gathering various materials to compare their beauty, indeed there is nothing finer than agate, draped in magnificent patterns and decorations, interspersed with crimson and green among the dark greenish-black mountain rocks. Categorized Chapters (Leipian): Also written in a variant form. Correct Rhymes (Zhengyun): Also written in a variant form.