Gemstone Testing Knowledge Quiz
Test your knowledge of gemstone identification and testing methods. Complete all questions to see how much you know!
Full Name
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First Name
Last Name
Email Address
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example@example.com
Which of the following tools is commonly used to test gemstone hardness?
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Mohs Hardness Kit
Refractometer
Spectroscope
Polariscope
Select all features that may help identify a synthetic gemstone.
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Inclusions
Color zoning
Perfect clarity
Growth lines
Other
Match the gemstone to its typical testing method.
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Rows
Testing Method
Diamond
Refractometer
Spectroscope
Mohs Hardness Kit
UV Light
Emerald
Refractometer
Spectroscope
Mohs Hardness Kit
UV Light
Ruby
Refractometer
Spectroscope
Mohs Hardness Kit
UV Light
Amber
Refractometer
Spectroscope
Mohs Hardness Kit
UV Light
Which result would you expect when testing amber with UV light?
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It fluoresces blue or green
It turns red
No reaction
It becomes transparent
Rate your confidence in identifying gemstones using refractometer readings.
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Not confident
1
2
3
4
Very confident
5
1 is Not confident, 5 is Very confident
Which of the following is NOT a common inclusion in natural gemstones?
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Gas bubbles
Needles
Flux residue
Growth tubes
Select the properties that can be measured with a refractometer.
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Refractive index
Birefringence
Specific gravity
Color
True or False: All gemstones display pleochroism.
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True
False
Briefly describe a common mistake made during gemstone testing and how to avoid it.
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