A chlorite cluster is a natural mineral formation consisting of a group of intergrown chlorite crystals. Chlorite is a silicate mineral that typically forms in low-grade metamorphic rocks and hydrothermal veins. Chlorite clusters can come in a variety of sizes and shapes, ranging from small clusters to large, complex formations. They often exhibit a greenish color and have a waxy or pearly luster. Chlorite clusters are valued by collectors for their aesthetic beauty and are also used in alternative healing practices for their purported healing properties.