Found at Mount Papandayan, West Java, Indonesia. The material is made of radially grown fibrous calcite with a distinctive yellow, orange and black banding. The orange and yellow colors are mainly caused by finely dispersed realgar (XRD analysis, Attard and Petrov, 2017; Raman analysis, Fritsch and Ivey, 2015). The black stain is caused by pyrite (EDS analysis, Fritsch and Ivey, 2015). “Jasper” is a misnomer, as it contains no quartz.