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15 Cards in this Set
- Front
- Back
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The easiest way to separate diamond from synthetic moissanite is by checking for |
doubling |
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Diamond simulants A.are the same as synthetic diamonds. B.are always manmade. C.have the same properties as natural diamonds. D.only look like diamonds. |
only look like diamonds.
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1.
Which of the following is a natural gem? A.Zircon B. YAG C. GGG D. Strontium titanate |
Zircon |
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A stone formed by cementing two separate pieces of material together is called a |
doublet |
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The easiest way to separate diamond from synthetic cubic zirconia is by checking for |
thermal conductivity. |
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A diamond imitation that’s foilbacked or composed of colorless lead-glass might be called a |
rhinestone |
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The term “diamond simulant” A. includes only manmade stones. B. refers to a stone with at least one property that’s the same as diamond. C. refers to a stone that looks like a diamond but has different optical, physical, and chemical properties. D. means the same as synthetic diamond. |
refers to a stone that looks like a diamond but has different optical, physical, and chemical properties. |
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All diamond simulants rank lower than diamond in |
hardness |
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The easiest way to separate diamond from zircon is by checking for |
doubling |
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Diamond imitations called “paste” are actually |
glass |
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Which of the following typically has a waxy to granular girdle surface? A. GGG B. CZ C. Synthetic rutile D. Diamond |
Diamond |
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Some diamond simulants display “see-through” because, compared to diamond, they |
have much larger critical angles.
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Which of the following properties is higher in GGG than in diamond? A. Specific gravity B. Dispersion C. Thermal conductivity D. Doubling |
Specific gravity |
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Which diamond simulant shows noticeable doubling and strong fire? |
Synthetic rutile
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The thermal diamond tester helps separate diamond from most simulants because of diamond’s excellent ability to |
conduct heat.
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