The Rose-quartz Crag is a dramatic poetic form intended to express pleasure with Kethat, originating in The Polish of Choirs. The rules of the form are applied by poets to produce individual poems which can be recited. The poem is three to four tercets. Forms of parallelism are common throughout the poem, in that certain lines often share an underlying meaning and they use the same placement of allusions. The second line of each tercet reverses the word order of the first line.