Quiz A. 7 - 11 Colored Stones
1. What is Myanmar's most important gem export?
A. Ruby
B. Spinel
C. Jadeite
D. Sapphire: Ruby.
The export value of ruby exceeds that of any other
gemstone produced in Myanmar. -7
2. Which location produces the majority of rubies that end up in mass-
produced jewelry?
A. Pailin
B. Mogok
C. Bo Phloi
D. Mong Hsu: Mong Hsu.
The Mong Hsu mining location of Burma produces most of the commercial-quality ruby
used in jewelry. -7
3. Which trade term describes a mixture of gem qualities that represents
unsorted production from a particular mine?
A. Mine run
B. Mine grade
C. Mine mixture
D. Mine assortment: Mine Run.
The trade term "mine run" describes a mixture of gem qualities from the unsorted
production of a particular mine.7
4. Which term describes a specific rough gemstone quality range, usually
determined by color, size, clarity, and price?
A. Grade
B. Mine lot
C. Mine run
D. Mine production: Grade.
,The term "grade" is used to describe a specific rough gemstone quality range.-7
5. Where is rough from Mogok brought into Thailand?
A. Pailin
B. Mae Sai
C. Mae Sot
D. Bo Phloi: Mae Sot.
Mae Sot is the border town where rough from Mogok, Myanmar, is usually brought into
Thailand. -7
6. Where is rough from Mong Hsu brought into Thailand?
A. Pailin
B. Mae Sai
C. Mae Sot
D. Bo Phloi: Mae Sai.
Mae Sai is the border town where rough from Mong Hsu, Myanmar, is usually brought into
Thailand. -7
7. In mining terms, the theft of a mine's production by its workers is known as
A. picking.
B. cobbing.
C. low grading.
D. high grading.: High Grading.
High grading is the term used to describe theft of a mine's production by its workers. -7
8. Which of the following is a quantity of stones, sometimes of similar size and
quality, from a single mine or from many different sources?
A. Parcel
B. Mine lot
C. Mine run
D. Production run: Parcel.
Stones are commonly sold in parcels.-7
9. Which of these is a cutting center for colored stones in Thailand?
A. Pailin
B. Mogok
,Quiz A. 7 - 11 Colored Stones
C. Mong Hsu
D. Chantaburi: Chantaburi.
Chantaburi is a major colored stone cutting center in Thailand. Mogok and Mong Hsu are
corundum sources in Myanmar.
Pailin is a corundum source in Cambodia.7
10. Materials cut free-size are usually
A. synthetics.
B. manmade imitations.
C. large, important stones.
D. commercial-quality gems.: Large, important stones.
Large important stones are cut free-size to retain as much of the valuable weight from the
rough as possible.-7
11. Gemstone sizes cut to fit standard mountings are known as
A. free sizes.
B. designer cuts.
C. industry sizes.
D. calibrated sizes: Calibrated sizes.
Many gems are cut to specific calibrated sizes to fit standard mountings.-7
12. The market sector where better-quality gemstones are used in well-
finished, moderately priced jewelry is known as the
A. mass market.
B. middle market.
C. high-end market.
D. commercial market.: Middle Market.
Better-quality gemstones and well-finished, moderately priced jewelry characterize the
middle market.-7
13. Which term describes a random sample from a parcel of gemstones, often
used to assess the parcel's overall quality?
A. Cut
, B. Lot
C. Pick
D. Grade: Cut.
A cut from a parcel is often used to assess the parcel's overall quality.-7
14. Which of the following is a price for buying an entire parcel of gems, or a
substantial part of it?
A. Lot price
B. Cut price
C. Pick price
D. Grade price: Lot price.
The price for buying an entire parcel is often discounted and called the lot price.-7
15. Which of the following is a premium price for selecting stones from a
parcel?
A. Lot price
B. Pick price
C. Grade price
D. Parcel price: Pick price.
The premium price for buying only a selection of stones in a parcel is called the pick price.-
7
16. 1. What two coloring agents are usually responsible for color change in
gemstones?
A. Copper and iron
B. Iron and titanium
C. Cobalt and titanium
D. Chromium and vanadium: Chromium and Vanadium.
Chromium and Vanadium cause the color-change phenomenon in
most gemstones.-8
17. 2. Extinction results from
A. mixed cuts.
B. deep pavilions.
1. What is Myanmar's most important gem export?
A. Ruby
B. Spinel
C. Jadeite
D. Sapphire: Ruby.
The export value of ruby exceeds that of any other
gemstone produced in Myanmar. -7
2. Which location produces the majority of rubies that end up in mass-
produced jewelry?
A. Pailin
B. Mogok
C. Bo Phloi
D. Mong Hsu: Mong Hsu.
The Mong Hsu mining location of Burma produces most of the commercial-quality ruby
used in jewelry. -7
3. Which trade term describes a mixture of gem qualities that represents
unsorted production from a particular mine?
A. Mine run
B. Mine grade
C. Mine mixture
D. Mine assortment: Mine Run.
The trade term "mine run" describes a mixture of gem qualities from the unsorted
production of a particular mine.7
4. Which term describes a specific rough gemstone quality range, usually
determined by color, size, clarity, and price?
A. Grade
B. Mine lot
C. Mine run
D. Mine production: Grade.
,The term "grade" is used to describe a specific rough gemstone quality range.-7
5. Where is rough from Mogok brought into Thailand?
A. Pailin
B. Mae Sai
C. Mae Sot
D. Bo Phloi: Mae Sot.
Mae Sot is the border town where rough from Mogok, Myanmar, is usually brought into
Thailand. -7
6. Where is rough from Mong Hsu brought into Thailand?
A. Pailin
B. Mae Sai
C. Mae Sot
D. Bo Phloi: Mae Sai.
Mae Sai is the border town where rough from Mong Hsu, Myanmar, is usually brought into
Thailand. -7
7. In mining terms, the theft of a mine's production by its workers is known as
A. picking.
B. cobbing.
C. low grading.
D. high grading.: High Grading.
High grading is the term used to describe theft of a mine's production by its workers. -7
8. Which of the following is a quantity of stones, sometimes of similar size and
quality, from a single mine or from many different sources?
A. Parcel
B. Mine lot
C. Mine run
D. Production run: Parcel.
Stones are commonly sold in parcels.-7
9. Which of these is a cutting center for colored stones in Thailand?
A. Pailin
B. Mogok
,Quiz A. 7 - 11 Colored Stones
C. Mong Hsu
D. Chantaburi: Chantaburi.
Chantaburi is a major colored stone cutting center in Thailand. Mogok and Mong Hsu are
corundum sources in Myanmar.
Pailin is a corundum source in Cambodia.7
10. Materials cut free-size are usually
A. synthetics.
B. manmade imitations.
C. large, important stones.
D. commercial-quality gems.: Large, important stones.
Large important stones are cut free-size to retain as much of the valuable weight from the
rough as possible.-7
11. Gemstone sizes cut to fit standard mountings are known as
A. free sizes.
B. designer cuts.
C. industry sizes.
D. calibrated sizes: Calibrated sizes.
Many gems are cut to specific calibrated sizes to fit standard mountings.-7
12. The market sector where better-quality gemstones are used in well-
finished, moderately priced jewelry is known as the
A. mass market.
B. middle market.
C. high-end market.
D. commercial market.: Middle Market.
Better-quality gemstones and well-finished, moderately priced jewelry characterize the
middle market.-7
13. Which term describes a random sample from a parcel of gemstones, often
used to assess the parcel's overall quality?
A. Cut
, B. Lot
C. Pick
D. Grade: Cut.
A cut from a parcel is often used to assess the parcel's overall quality.-7
14. Which of the following is a price for buying an entire parcel of gems, or a
substantial part of it?
A. Lot price
B. Cut price
C. Pick price
D. Grade price: Lot price.
The price for buying an entire parcel is often discounted and called the lot price.-7
15. Which of the following is a premium price for selecting stones from a
parcel?
A. Lot price
B. Pick price
C. Grade price
D. Parcel price: Pick price.
The premium price for buying only a selection of stones in a parcel is called the pick price.-
7
16. 1. What two coloring agents are usually responsible for color change in
gemstones?
A. Copper and iron
B. Iron and titanium
C. Cobalt and titanium
D. Chromium and vanadium: Chromium and Vanadium.
Chromium and Vanadium cause the color-change phenomenon in
most gemstones.-8
17. 2. Extinction results from
A. mixed cuts.
B. deep pavilions.
