Primary Job Title Founder Primary Organization 
Mindat.org
Location Mitcham, Surrey, United Kingdom Regions Europe, Middle East, and Africa (EMEA) Gender Male
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Jolyon is the founder of mindat.org. He started mindat as a personal mineral information database in 1993, which was later launched as a web site in October 2000. He also runs the gemdat.org website with his wife Katya. They have a young son, Roman, born in 2014.
