Precious stone brand name for a reddish-orange shape of spessartine garnet (or rather a blend of spessartine and pyrope), which has its origin in the Umba river valley in Tanzania and Kenya. It is sometimes used as a spessartine name. Spessartine can be used as a facetted jewel.
This is the most common type of red ish-orange sheen. Spessartite copies, especially those found recently in Tanzania, are very much appreciated by minerals gatherers. See also the gem section on spessartite and garnets. In 2008, a new exceptional deposit of brilliant amber Spessartite crystal was launched in Tanzania.
Brilliant gleaming yellow coloured crystal once came from Marienfluss, Kunene Region, Namibia, but these high-quality Spessartine varieties are very difficult to find today. Malaysia Garnet (a trading name for Garnet Mediator between Spessartin and Pyrope) is known from Mwakaijembe in the Umba River Valley, Tanzania. A further prominent discover of Spessartine was in China, where it was found in Tongbei and Yunling, Zhangzhou Prefecture, in the end of the 1990s.
Chinese Spessartine is often found in thick aggregations of small gemstone crystal that cover Smoky quartz. Spessartine, the most delicate deep reddish spessartine, usually associated with conflicting albite, comes from Pakistan in Shengus and the Shigar Valley, Skardu District; and the Gilgit District. Spessartin of similar qualities can also be found in Darra-i-Pech, Nangarhar Province, Afghanistan.
Shiny Spessartine, sometimes in complicated crystal with engravings, comes from several of the gemstone pegmatites in Minas Gerais, Brazil, especially at Conselheiro Pena, São José da Safira and Galiléia, all in the Doce Vall. The Navegadora mine in São José da Safira, which generates highly corroded, distorted crystal, is particularly noteworthy.
Further Spessartine deposits are Broken Hill, New South Wales, Australia; Val Codera, Sondrio, Italy; San Piero in Campo, Elba Island, Italy; and Iveland, Aust-Agder, Norway. The best-known deposits of Spessartine in the USA are Little Three Mine, Ramona, San Diego Co. in California; Pack Rat Mine, Jacumba, San Diego Co. in California; Ruby Mountain, Nathrop, Chaffee Co. in Colorado; East Grants Ridge, Cibola Co. in New Mexico; and Thomas Range, Juab Co. in Utah.
Pyropy - The color is usually deep reddish. Großular - Very difficult to differentiate without the use of sophisticated techniques, although granular crystal is not often trapezoid, while spessartin is more often trapezoid. Andradit - Very difficult to differentiate without complicated method.