Excuse me, what is the meaning of "Jasper" in the poem "Little Jasper Mirror Without Mind"?

Xiao Jia Bi Yu originally refers to a concubine named Bi Yu of Ismail, King of Runan in Jin Dynasty. Sun Chuo wrote two Jasper songs. One: Jasper is a little girl, she dare not climb your virtue. Feeling a thousand dollars, the whole city is ashamed. Second, when Jasper broke the melon, the situation was reversed. Feeling that Lang was not ashamed, he turned and hugged Lang. Later, it refers to a beautiful girl from a small family.