Gem Identification 2 ACTUAL UPDATED
QUESTIONS AND CORRECT ANSWERS
When a material only partially transmits light so that an image seen through it has just a vague
outline, it is described as - CORRECT ANSWERS Translucent
Asterism is caused by - CORRECT ANSWERS reflections from precisely oriented,
needle-like inclusions
A material's luster depends on its RI, hardness, and - CORRECT ANSWERS quality of
polish
A flat, smooth break parallel to a gem's twinning planes is called - CORRECT
ANSWERS Parting
You should start the gem identification process with - CORRECT ANSWERS General
Observation
The cat's-eye effect is also called - CORRECT ANSWERS Chatoyancy
The most common luster for transparent gems is - CORRECT ANSWERS Vitreous
If you see a red ring during your examination of a gem, it is a(n) - CORRECT
ANSWERS garnet-and-glass doublet
On your Gem Identification worksheet, record a very light violetish blue body color as -
CORRECT ANSWERS vlvB
If you have a gem where a design is engraved into the surface, record its cutting style as -
CORRECT ANSWERS Intaglio
, A curved, ridged fracture extending inward from the surface of a gem is described as -
CORRECT ANSWERS Conchoidal
If you observe extreme fire in a colorless gem, it might be - CORRECT
ANSWERS Synthetic Rutile
Heft cannot be tested on a gem if it is - CORRECT ANSWERS Mounted
An unusual optical effect displayed by a gem is called - CORRECT ANSWERS a
phenomenon
The degree to which a material transmits light is its - CORRECT
ANSWERS Transparency
A smooth, flat break in a gemstone parallel to planes of atomic weakness is - CORRECT
ANSWERS Cleavage
The seperation of white light into spectral colors is - CORRECT ANSWERS Dispersion
A curved rigid fracture in a gemstone extending from the surface inward - CORRECT
ANSWERS Conchoidal fracture
The flashes of spectral color you see in a polished gem, especially a diamond is - CORRECT
ANSWERS Fire
Any break in a gem other than cleavage or parting is a - CORRECT ANSWERS Fracture
A sugary or grainy fracture that appears in microcrystalline aggregates is - CORRECT
ANSWERS Granular Fracture
QUESTIONS AND CORRECT ANSWERS
When a material only partially transmits light so that an image seen through it has just a vague
outline, it is described as - CORRECT ANSWERS Translucent
Asterism is caused by - CORRECT ANSWERS reflections from precisely oriented,
needle-like inclusions
A material's luster depends on its RI, hardness, and - CORRECT ANSWERS quality of
polish
A flat, smooth break parallel to a gem's twinning planes is called - CORRECT
ANSWERS Parting
You should start the gem identification process with - CORRECT ANSWERS General
Observation
The cat's-eye effect is also called - CORRECT ANSWERS Chatoyancy
The most common luster for transparent gems is - CORRECT ANSWERS Vitreous
If you see a red ring during your examination of a gem, it is a(n) - CORRECT
ANSWERS garnet-and-glass doublet
On your Gem Identification worksheet, record a very light violetish blue body color as -
CORRECT ANSWERS vlvB
If you have a gem where a design is engraved into the surface, record its cutting style as -
CORRECT ANSWERS Intaglio
, A curved, ridged fracture extending inward from the surface of a gem is described as -
CORRECT ANSWERS Conchoidal
If you observe extreme fire in a colorless gem, it might be - CORRECT
ANSWERS Synthetic Rutile
Heft cannot be tested on a gem if it is - CORRECT ANSWERS Mounted
An unusual optical effect displayed by a gem is called - CORRECT ANSWERS a
phenomenon
The degree to which a material transmits light is its - CORRECT
ANSWERS Transparency
A smooth, flat break in a gemstone parallel to planes of atomic weakness is - CORRECT
ANSWERS Cleavage
The seperation of white light into spectral colors is - CORRECT ANSWERS Dispersion
A curved rigid fracture in a gemstone extending from the surface inward - CORRECT
ANSWERS Conchoidal fracture
The flashes of spectral color you see in a polished gem, especially a diamond is - CORRECT
ANSWERS Fire
Any break in a gem other than cleavage or parting is a - CORRECT ANSWERS Fracture
A sugary or grainy fracture that appears in microcrystalline aggregates is - CORRECT
ANSWERS Granular Fracture
