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Gemology Quiz Version 5

on September 26, 2026

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Iolite (Cordierite) MCQs

Iolite (Cordierite): Interactive MCQ Quiz Choose one answer for each question, then select Submit Quiz . Your score and explanations will appear below. 1. Which color and alternate name does the book give for iolite? Pink-red; rubellite Green; peridot Violet-blue; cordierite Yellow; sherry topaz 2. Why has iolite been called “water sapphire”? It can resemble blue sapphire when cut It occurs only in water It is chemically the same as sapphire It is a blue variety of corundum 3. What property gives iolite its other name, “dichroite”? Its high density Its cat’s-eye effect Its perfect cleavage Its strong pleochroism 4. Does the book say equipment is needed to see iolite’s pleochroism? Yes, a microscope is required No, it can be seen without equipment Yes, but only under ultraviolet light The book says it has no pleochroism 5. ...

Aquamarine (Beryl) MCQs

Aquamarine (Beryl): Interactive Gemstone MCQ Quiz Choose one answer for each question, then select Submit Quiz . Your score and explanations will appear below. Incorrect and unanswered questions include an explanation of the correct answer. 1. Aquamarine belongs to which mineral variety? Garnet Zircon Beryl Tourmaline 2. What does the name “aquamarine” mean? Seawater Reindeer stone Golden color Rod-shaped stone 3. Which aquamarine colors does the book say are most valued today? Red and orange Yellow and brown Only sea green Sky blue and dark blue 4. What does dichroic mean in the book’s description of aquamarine? It changes hardness when turned It may appear blue or colorless from different viewing angles It always shows two separate colors at once It becomes opaque in sunlight 5. What shape are gem-quality aquamarine ...

Yellow Sapphire (Corundum) MCQs

Yellow Sapphire (Corundum): Interactive MCQ Quiz Choose one answer for each question, then select Submit Quiz . Your score and explanations will appear below. 1. What was yellow sapphire historically called until the end of the 19th century? Oriental peridot Green diamantite Oriental topaz Sri Lankan jade 2. Which corundum color was historically called sapphire, according to the book? Blue Yellow Green Colorless 3. How does the book describe yellow and greenish yellow sapphires? Common stones with no jewelry use Varieties of quartz Stones found only as crystals too small to cut Unusual and attractive gemstones in their own right 4. Where does the book mention greenish yellow sapphire in Australia? Victoria and Tasmania Queensland and New South Wales Western Australia and South Australia Northern Territory and Victoria 5. W...

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Gemology Quiz Version 5

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