Components CompositionMalachite green 10 g/l, in water (oxalate form is used) Application Staining of bacterial spores according to Schaeffer and Fulton; Pappenheim stain when combined with Gram′s stain General description Malachite Green is used for bacterial spore staining by Schaeffer and Fulton`s method. It can also be used in place of methyl green in the Pappenheim stain, when combined with the Gram stain.