Gemology - Colored Stones - Assignment 1-2 Questions with Correct Answers

A gem produced by, or derived from, a living organism is A. organic. B. synthetic. C. inorganic. D. manmade. Correct Answer A. organic. Which of the following is an organic gem? A. Jade B. Ruby C. Amber D. Tourmaline Correct Answer C. Amber A substance that consists of atoms of only one kind is a A. mineral. B. unit cell. C. gem species. D. chemical element. Correct Answer B. unit cell. A natural, inorganic substance with a characteristic chemical composition and usually characteristic crystal structure is a(n) A. atom. B. mineral. C. synthetic. D. chemical element. Correct Answer B. mineral. Most gems are A. rocks. B. organic. C. minerals. D. synthetic. Correct Answer C. minerals. A natural material that's made up of a mass of one or more kinds of mineral crystals is a A. rock. B. group. C. variety. D. chemical element. Correct Answer A. rock. Which of the following is amorphous? A. Beryl B. Amber C. Garnet D. Jadeite Correct Answer B. Amber A broad gem category based on chemical composition and crystal structure is a A. rock. B. group. C. gem variety. D. gem species. Correct Answer D. gem species. Which of the following is a gem variety? A. Beryl B. Garnet C. Andradite D. Demantoid Correct Answer D. Demantoid Which group does almandine belong to? A. Spinel B. Garnet C. Feldspar D. Tourmaline Correct Answer B. Garnet The world's largest gem-consuming market is A. Japan. B. Europe. C. Thailand. D. United States. Correct Answer D. United States. Synthetic gem materials A. are organic. B. are not minerals. C. are usually amorphous. D. are classified as minerals. Correct Answer B. are not minerals. To be a gem, a mineral must be beautiful, durable, and A. rare. B. colorful. C. transparent. D. lightweight. Correct Answer A. rare.