The Pink-garnet Chert Bandfire-opal is a ribald poetic form concerning mining, originating in The System of Gorillas. The form guides poets during improvised performances. The poem is three tercets. Use of elision is characteristic of the form. A form of parallelism is common throughout the poem, in that certain lines often share an underlying meaning. Every line of the poem has an initial caesura. The rhyme scheme of the poem is ABB.