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Gemstones and Minerals
This site will help people understand the wonderful world of minerals and gemstones.
WesselHokrskool Eldoraigne, Pretoria, South Africa
MarjaHokrskool Voortrekkerhoogte, Pretoria, South Africa
CarloCenturion, Centurion, South Africa
19 & under
R HumanHokrskool Eldoraigne, Clubview, South Africa
Science & Technology > Earth Science > Mining