Zunyite is a rare chlorinated silicate. Tan, triangular zunyite crystals to 3 mm are richly scattered in clusters and as discrete crystals on all sides of the green chlorite schist-rich matrix on this excellent, very rich and highly representative specimen of the species and locale - the Potmasburg Manganese Field of South Africa. Ex. Don Boyston Collection. This material probably dates to the 1950s or 1960s and comes with an older Burminco label.