eosc- quiz 3

eosc- quiz 3 - Quiz #3- Person 1 1. Which of the following...

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Quiz #3 - Person 1 1. Which of the following phrases will make this statement TRUE? Binocular gemological microscopes ______. Reveal more inclusions than a 10X Loupe 2. When speaking of light with respect to gems and jewellery, the terms “incandescent,” “daylight,” and “fluorescent” refer to… Sources of light 3. A hand lens (or loupe)… A critical tool for gemology and geology 4. The dichroscope… Used to examine the optic class of minerals 5. Dispersion… Describes the spreading of light as a result of differential refraction 6. Reflection and refraction are not the same phenomenon. 7. Three terms used to describe how a gem is coloured… Idiochromatic, pseuchromatic, allochromatic 8. Internal reflection… Sought after when cutting diamonds; occurs when much of the light enters a cut gem is returned through the table to your eye 9. The open spaced areas in pegmatites that house many gem speciments are often called… Pockets 10. Most gem varieties from the tourmaline group have the base mineral…
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eosc- quiz 3 - Quiz #3- Person 1 1. Which of the following...

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