27 Multiple choice questions
Term 1 of 27
Rubies from Pailin, Cambodia, are similar to those from...
Kenya
Indonesia
Thailand
Vietnam
Term 2 of 27
What location has supplied the world with most commercial-quality rubies since 1991?
Darker
Thailand
Rangoon.
Mong-Hsu
Term 3 of 27
Switzerland exports rubies that are primarily...
kenya
low end
thailand
high end
,Term 4 of 27
Where are the Penny Lane and John Saul mines located?
Tanzania
Nigeria
Kenya
Thailand
Term 5 of 27
Ruby deposits in Thailand and Cambodia are associated with...
alkali-basalt
madagascar
marble
granite.
Term 6 of 27
Rubies that come from marble deposits are typically low in...
zinc
iron
copper
silicon
Term 7 of 27
In the early 1980s, the major source for rubies was...
Vietnam
Kenya
Madagascar
Thailand
, Term 8 of 27
The most valuable tone and saturation for ruby are...
light tone and dull saturation.
medium to medium-dark tone and vivid saturation.
pale tone and intense saturation.
deep tone and subtle saturation.
Term 9 of 27
In ancient Sanskrit, ruby is called RATNARAJ or
medium to medium-dark tone and vivid saturation.
_____________, _____________, is the most important historical ruby source.
the higher levels of ______ in basalt-hosted rubies inhibit fluorescence.
"king of precious stones"
Term 10 of 27
Compared to rubies from Myanmar, most Thai rubes tend to be...
darker
mong-hsu
smaller
lighter
Term 11 of 27
Vietnamese rubies originate in...
granite
quartzite
iron
marble