Gemstone and mineral data book :
Sinkankas, John,
Gemstone and mineral data book : A compilation of data, recipes, formulas and instructions for the mineralogist, gemologist, lapidary, jeweler, craftsman and collector. - 352 páginas
Gemas
Piedras preciosas
QE392 / S54
Gemstone and mineral data book : A compilation of data, recipes, formulas and instructions for the mineralogist, gemologist, lapidary, jeweler, craftsman and collector. - 352 páginas
Gemas
Piedras preciosas
QE392 / S54