Specific gravity chart, Specific gravity is an important tool in gemstone identification that is useful for the gem buyer as well as the gemologist. a 1-carat stone with higher specific. Colored stone reports & services, 11111colored stone identification report colored stone identification report. identifies and describes a material and lists detectable treatments.. Refractive index chart - gemselect, Refractive index chart. refractive index, or ri is one of the most important signatures of a gemstone. measuring the refractive index is one of the first steps in.

Standard gem sizes chart - international gem society - igs, Will gem fit standard setting? chart standard gem sizes popular cuts learn estimate gem weight based size.. https://www.gemsociety.org/article/standard-gem-sizes-chart/ Mineral identification chart - mineral properties, This mineral identification chart created art crossman college project mansfield university 1997. outstanding job, organizing. https://geology.com/minerals/mineral-identification.shtml Tumbled stone identification chart tumbled gemstones, Tumbled stone identification chart- carry number gemstones, mixed stones, simple chart boost sales helping customers. http://www.naturesexpression.com/Tumbled-Stone-Identification-Chart_p_4824.html