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Colored Stones Questionnaire 8 with 100- correct answers.
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Colored Stones Questionnaire 8 with 100- correct answers.
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Colored StonesQuestionnaire 8 with
100% correct answers
Extinction results from
A. mixed cuts.
B. deep pavilions.
C. shallow proportions.
D. excellent proportions. - answer C. deep
pavilions
Before looking at the color of a gem, clean the
stone, and then pick it up by its girdle with
tweezers or place it on a background that is
A. black.
B. brightly colored.
C. neutrally colored.
D. the same color as your desktop. - answer C.
neutrally colored
Use trade terms that imply geographic origin only
if the
, A. color is typical of the source.
B. gem's actual source is known.
C. clarity is typical of the source.
D. color and clarity are typical of the source. -
answer B. gem's actual source is known
Most defects in colored stone proportions are
A. due to an inexperienced cutter's errors.
B. only seen in very small finished stones.
C. only seen in stones with low tone and low
saturation.
D. compromises made by the cutter to produce
economically viable gems. - answer D.
compromises made by the cutter to produce
economically viable gems
The first impression of an object's basic color is its
A. hue.
B. tone.
C. saturation.
D. bodycolor. - answer A. Hue
When a singly refractive stone shows a second
color face-up, this is
A. called pleochroism.
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