African ruby is a ruby produced in Kenya and belongs to a part of similar ruby and sapphire deposits in eastern Africa. The Johnsoul mining area, which is mainly mined now, was discovered by geologist John Soul in 1975. It is located in Caiwo National Park in Mangalie, taitatavat District, off the coast of Kenya, and produces rubies of various qualities and star rubies. It is said that its color is similar to that of Burmese ruby, and it is easy to heat treat, so it is often sold as Burmese ruby. Among them, 10% ~ 15% has good color, but most of them have poor transparency, which is suitable for grinding egg-shaped torus. The largest known rough stone weighs 350 grams.
English name african ruby Ruby is produced in Tanzania and Kenya. The former is usually a ruby with large particles, good color but poor transparency, which is mainly produced in the Metabuto Mountains in the northeast. The soul mineral of the latter Tsavo National Park has some high-quality large-grained rubies, which can be ground out and weigh 7 carats. There are high-quality rubies processed into egg-shaped arcs along the coast of tana river in the north. In addition, rubies are also produced in Madagascar and other places in Africa. Many African rubies have polycrystalline twins, and white diaspore inclusions are often formed by hydration on the twins.