Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Colored Stones Exam > GIA Colored Stones Exam 701-747 > Flashcards

GIA Colored Stones Exam 701-747 Flashcards

1
Q

What is Myanmar’s most important gem export?

A

ruby

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which location produces the majority of rubies that end up in mass_produced jewelry?

A

Mong Hsu

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the trade term that describes a mixture of gem qualities that represents unsorted production from a particular mine?

A

mine run

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What term describes a specific rough gemstone quality range; usually determined by color; size; clarity; and price?

A

grade

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Where is rough from Mogok brought into Thailand?

A

Mae Sot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Where is rough from Mong Hsu brought into Thailand?

A

Mae Sai

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

In mining terms; the theft of a mine’s production by its workers is known as __________.

A

high grading

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

A quantity of stones; sometimes of similar size and quality; from a single mine or from many different sources is called ___________.

A

parcel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the main cutting center in Thailand?

A

Chantaburi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Materials cut free_size are usually __________.

A

large important stones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Gemstone sizes cut to fit standard mountings are known as ________.

A

calibrated sizes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The market sector where better_quality gemstones are used in well_finished; moderately priced jewelry is known as the _____________.

A

middle market

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What term describes a random sample from a parcel of gemstones often used to access the parcel’s overall quality?

A

cut

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the term for buying an entire parcel of gems; or a substantial part of it?

A

Lot price

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the term for a premium price for selecting stones from a parcel?

A

pick price

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Aragonite is a crystallized form of ___________.

A

calcium carbonate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What year did Kokichi Mikimoto begun culturing whole pearls?

A

1908

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What industry directly contributed to the decline of the natural pearl industry?

A

oil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

The first South Sea cultured pearl farm was founded in what country?

A

Australia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Saltwater whole cultured pearls grow from a ____________.

A

Mantle_tissue piece and a bead nucleus.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

A great majority of freshwater whold cultured pearls grow from a ___________.

A

mantle_tissue piece only

22
Q

In the early 1990’s; oysters in many important Japanese cultured pearl farming areas began to ____________.

A

die off massively in large numbers

23
Q

The four major types of whole pearls are ______; ________; __________ and ________.

A

Akoya; South Sea; freshwater; Tahitian

24
Q

South Sea cultured pearls are produced principally in Australia; Indonesia and the __________.

A

Philippines

25
Q

The oyster used to grow Tahitian cultured pearls is _____________.

A

Pinctada margaritifera

26
Q

The nacreous layer inside a pearl_bearing mollusk’s shell is called ___________.

A

mother_of_pearl

27
Q

What country produces the most freshwater cultured pearls?

A

China

28
Q

A number of similar cultured pearl strands bundled together is called a ___________.

A

hank

29
Q

Seed pearls are _________.

A

very small natural pearls

30
Q

Common name for the Pinctada fucata oyster and the natural or cultured pearls it produces.

A

Akoya

31
Q

A crystallized form of calcium carbonate found in nacre.

A

Aragonite

32
Q

A bead used as the core of a cultured pearl; usually made from a freshwater mussel shell.

A

bead nucleus

33
Q

A non_nacreous natural “pearl”

A

Calcareous concretion

34
Q

The organic “glue” in nacre that holds aragonite platelets together.

A

Conchiolin

35
Q

A cultured pearl grown around a nucleus glued under the mantle tissue inside a mollusk’s shell.

A

cultured blister_pearl

36
Q

A pearl formed as the result of human intervention in the formation process.

A

cultured pearl

37
Q

The reproductive organ that produces eggs in females and sperm in males.

A

gonad

38
Q

Describes mollusks bred in laboratory tanks and grown in protected areas rather than collected as adults in the wild.

A

hatchery_bred

39
Q

An assembly composed of a nacre dome; filler; and a mother_of_pearl backing.

A

Mabe’

40
Q

The organ that lines the mollusk’s shell encloses its soft body; and contains the cells that form pearl sacs and secrete nacre.

A

Mantle

41
Q

A small square of mantle tissue cut from a donor mollusk and implanted in a host mollusk with or without a bead.

A

mantle_tissue piece

42
Q

The nacreous layer inside a pearl_bearing mollusk’s shell.

A

mother_of_pearl

43
Q

A natural substance produced by pearl_bearing mollusks to make pearls.

A

nacre

44
Q

Tissue that encloses an implanted bead nucleous and mantle_tissue piece; or the piece alone; and secretes nacre to form a cultured pearl.

A

pearl sac

45
Q

A company that prepares cultured pearls for the market.

A

processor

46
Q

Chinese freshwater cultured pearls shaped and textured like rice grains.

A

rice pearls

47
Q

What country produces an overwhelming majority of the world’s freshwater cultured pearls.

A

China

48
Q

Produced by; or derived from; a living organism is called ____________.

A

organic

49
Q

A natural material composed of masses of mineral crystals of one or more kinds is called a _________.

A

rock

50
Q

A mineral that contains the elements silicon and oxygen is called a __________.

A

silicate

Colored Stones Exam (15 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions