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Colored Stones
Quiz
33
Other
Professional
09/09/2006

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Term
The regular, repeating internal arrangement of atoms in a mineral is called
a. crystal structure
b.chemical formula
c.amorphous structure
d. chemical composition
Definition
a. crystal structure
Term
Minerals that do not have a crystal structure are
a.pure
b.synthetic
c.amorphous
Definition
c. amorphous
Term
One of the most obvious effects of a trace element in a mineral is
a.color
b.value
c.rarity
d.shape
Definition
a. color
Term
The appearance of a materials surface in reflected light is called
a.luster
b.symmetry
c.transparency
d.crystal structure
Definition
a. luster
Term
A material that is structured so that no light can pass through is
a. opague
b. translucent
c. transparent
Definition
a. opague
Term
A gem that is not easily affected by light, chemicals, or heat has good
a.stability
b.hardness
c.toughness
Definition
a. stability
Term
All members of the same gemological species have the same
a. beauty
b. color
c. trace elements
d. chemical composition
Definition
d. chemical composition
Term
Each of hte different colors that make up white light is called a spectral
a. hue
b. tone
c. disperation
a. absorption
Definition
a. hue
Term
A colors strength or intensity is called
a. hue
b. tone
c. brilliance
d. saturation
Definition
d. saturation
Term
A gem that shows different bodycolors depending on the viewing direction is
a. dispersive
b. pleochroic
c. flourescent
Definition
b. pleochroic
Term
The seperation of white light into spectral colors is called
a. disperation
b. windowing
c. pleochorism
d. color zoning
Definition
a. disperation
Term
Gems that display uusual optical effects are classified as
a. rare
b. precious
c. phenominal
Definition
c. phenominal
Term
The shifting flashes of rainbow hues seen in opals are known as
a. diffraction
b. disperationc. ploechorism
d. play-of-color
Definition
d. play-of-color
Term
Alexandrite shows color change in response to
a. the type of light
b. the viewing angle
c. the style of the cut
d. the quality of the setting
Definition
a. the type of light
Term
Star ruby shows a phenomenon called
a. orient
b. asterism
c. iridescence
d. chatoyancy
Definition
B asterism
Term
Orient is the term for the irridescence seen in some
a. pearls
b. fire agates
c. spectrolites
d. labrodites
Definition
a. pearls
Term
The emission of visible light by a material when it's simulated by ultraviolet radiation or other forms of radiation is
a. diffraction
b. pleochorism
c. flourescence
d. selective absorption
Definition
c. flourescence
Term
Which gem displays chatoyancy?
a. fire agate
b. lapis lazuli
c. star sapphire
d. cats-eye chrysoberyl
Definition
d. cats eye chrysoberyl
Term
Which gem is best known for the phenomenon called color change
a. opal
b. tanzanite
c. tounaline
d. alexandrite
Definition
d. alexandrite
Term
An area of weaker color caused by light leaking from the bottom of the stone is called
a. extinction
b. windowing
c. pleochorism
d. color zoning
Definition
b. windowing
Term
Colored stones that tend to cleave include tanzanite, kunzite, moonstone, and
a.topaz
b. peridot
c. emerald
d. toumaline
Definition
a. topaz
Term
Any type of break other than cleavage or parting is called
a. a fracture
b. eye-visable
c. a twinning plane
d. a structural direction
Definition
a. a fracture
Term
The inclusions that can create phenomenon such as cats-eyes and stars are sometimes called
a. pits
b.silk
c. nicks
d. scratches
Definition
b. silk
Term
A curved and ridged fracture in a gemstone, extending from the surface inward
Definition
Conchidial Fracture
Term
The network of tiny fractures that develops when an opal loses moisture
Definition
Crazing
Term
a direct way to correct a customers misconceptions
Definition
Direct denial
Term
a way to correct a customers misconceptions without calling then "wrong"
Definition
Indirect denial
Term
reenstatement of a benefit posed as a question to elict agreement
Definition
Tag
Term
A two part slaes technique that removes the customers "just looking" defence.
Definition
Take-Away
Term
The worlds greatest collection of fashioned emeralds is located in
a. Iran b. India c.Russia d. Great Britian
Definition
A. Iran
Term
The worlds most important source of emeralds is
a.Thailand b.Sri Lanka c.columbia d.Zimbabwe
Definition
C. Columbia
Term
The two phenomena most likey to occur in sapphire are asterism and
a.Orient
b. color change c. play-of-color d. labradorescence
Definition
b. color change
Term
Ultrasonic cleaners can cause problems if a stone is porus, has low toughness, or is a. irridated, b. heat treated c. fracture-filled
Definition
c. fracture filled
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