Our latest project is in the Tanga region in a village called Mwakijembe in the Mkinga District where we mine the Tourmaline gemstone. Tourmaline is a unique product labeled  as one of the Earth’s most colorful gemstone as it can be found in all colors of the rainbow. At Ruby we mine the the green colored Tourmaline, an eye catching beauty that is excellent for jewelry as it is quite resistant to both scratching and breaking.