It provides immediate access to "hard-to-find" information like melting points and heating properties that are often missing from standard textbooks.
Contains weight conversion charts, chemical preparation formulas, and comprehensive ring size gauges. spravochnik dlja juvelira
While Knuth’s work is the most prominent "Sprovochnik," other valuable guides include: chemical preparation formulas
Detailed information on the composition of precious metal alloys and official standards for gold and silver. diagrams for over 40 cutting styles
Includes an expanded list of gemstones with their physical characteristics, diagrams for over 40 cutting styles , and official diamond grading standards.