gems, Somalia, Somaliland, ruby, sapphire, garnet

Recent geological surveys indicate that Somaliland has abundant deposits of gemstones, from emerald to aquamarine, ruby and sapphire as well as vast amounts of garnet, quartz and opal, and lesser-known minerals such as titanite and vesuvianite. Somaliland in northern Africa appears to be the new potential gemstone-bearing area comparable to Madagascar or Tanzania. In addition to pegmatite, which are the host rocks of emerald and other kinds of beryl such as aquamarine, Somaliland has metamorphic rocks that hold nodules of ruby and sapphire. There is little understanding of its mineral deposits, but villagers in Somaliland use primitive tools to dig out a range of gemstones that they offer for sale to dealers locally. When aid officials at the European Community (EC) office in the capital, Hargeisa, first saw the gemstones, they believed they had been stolen from graves. To determine whether these stones came out of the ground or were stolen, EC invited Dr. Judith Kinnaird, a consultant geologist and gemmologist from the University of Witwatersrand in Johannesburg, to investigate. Dr. Kinnaird visited the country twice and, in addition to identifying gem minerals, she helps local miners distinguish among similar coloured minerals and is working with Progressive Interventions (supported by EC funding) to help set up a gemmological association and marketing channels. Somaliland is part of the Mozambique Belt and was formerly part of the same landmass as Madagascar, Tanzania, Sri Lanka and India prior to continental drift. Recovery of gemstones began only in 1988 and is still carried out in a primitive and haphazard manner. The gem-producing belt is a narrow strip between 30 and 80 km wide and 200 to 300 km long, running roughly parallel to the Gulf of Aden. The country, once a British protectorate, suffered a nine-year civil war from 1982, leaving infrastructure like roads and bridges in disrepair. Dr. Kinnaird described access to gem deposits as difficult and hazardous. The terrain includes high mountains and coastal regions with temperatures reaching up to 50°C. Two emerald-producing areas, Alihiley and Simodi, occur at the contact of pegmatite and chromium-bearing schist. Patchy colour development and dual-colour zoning were observed in crystals. At Simodi, pegmatite is visible across the hillsides, and emerald is being mined again after years of inactivity, despite dangerous pit conditions and lack of equipment. In Alihiley, rudimentary mechanical tools like a compressor are used. East of the emerald belt, aquamarine and other beryls occur in pegmatite intruding granite, giving rise to large but often cracked crystals coloured by iron or titanium. Reports also mention yellow beryl (heliodor). Ruby and sapphire are found in metamorphic rocks, not pegmatite. Ruby has been found in red corundum cores with green zoisite, while sapphire occurs in nodules, greenish-blue near the surface and better-quality blue material at depth. Unlike other African countries, ruby and sapphire are not found together. Garnet is extremely abundant, in red to orange colours and of multiple types, including pyrope and almandine, and some green garnets initially mistaken for Tsavorite were identified as vesuvianite. Orange to yellow opals lacking play-of-colour have been found, but high-quality reddish opal with good play-of-colour also occurs, possibly in both lava and gypsum/anhydrite strata. Quartz is widespread, including high-purity rock crystal, smoky quartz, banded forms, and deep purple amethyst. Additional minerals include red spinel, watermelon tourmaline, colourless topaz, blue and green vesuvianite, titanite, apatite, and zircon. Some locals mistake quartz for diamond, though Dr. Kinnaird clarified there are no diamonds in Somaliland.