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Unit 1 A basic understanding of gemstone Words and expressions Notes Exercises Grammar Reading material ( Red Tourmaline) Useful expressions and dialogues Unit 2 Light and gemstones Words and expressions Notes Exercises Grammar Reading materials (Amethyst) Useful expressions and dialogues Unit 3 Force and gemstones Words and expressions Notes Exercises Grammar Reading materials (Treatment and identification of a gemstone) Useful expressions and dialogues Unit 4 Gemstones and their synthetic counterparts Words and expressions Notes Exercises Grammar Reading material ( Gemological instruments) Useful expressions and dialogues Unit 5 Diamond Words and expressions Notes Exercises Grammar Reading material( The basic parts of a cut diamond and gemstone cut) Useful expressions and dialogues Unit 6 Gemological characteristics of Myanmar jade Words and expressions Notes Exercises Grammar Reading materials( Common questions about jewelry design) Useful expressions and dialogues Unit 7 Evaluation and appraisal of jade Words and expressions Notes Exercises Grammar Reading materials ( Precious metals) Useful expressions and dialogues Unit 8 Some notice in jade dealing Words and expressions Notes Exercises Grammar Reading materials (Find out your birthstone) Useful expressions and dialogues Appendix of vocabulary Ö÷Òª²Î¿¼ÊéÄ¿