YourGemologist's Gemology Test

The hardness of ruby is____________?
7
8
9
9.5


Blue sapphires get their color by an interaction of the elements iron and_________?
titanium
boron
chromium
vanadium


Synthetic moissanite is easily separated from a diamond by use of a ________.
refractometer
dichroscope
spectroscope
10x loupe


The most important grade accounting for beauty of a diamond is__________.
clarity
color
cut
carat weight


When a diamond is being graded mounted it is acceptable to provide a split grade to account for possible unseen inclusions.
True
False




There are several synthetic tanzanites on the market.
True
False




Beryl and chrysoberyl are sister stones in that one is a silicate and the other is a(n)_________.
color change stone
crystal
oxide
chemically equal stone


The refractive index of opal is generally __________.
1.30
1.35
1.40
1.45


The specific gravity of topaz is______________.
2.53
3.25
3.53
3.85


Garnets make up one of the largest isomorphous replacement groups.
True
False




Since September 19, 2000, there have been multiple choice activities generated by this program .

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