Colored Stones Essentials Final Exam
Questions and Already Passed Answers
2025-2026 Update.
Most gems are ____ - Answer Minerals
All ____ possess some degree of beauty, rarity and durability - Answer Gems
____ is the most important factor in colored stone's beauty - Answer Color
Most gems are somewhere in the middle of the ____ scale - Answer Rarity
Lacking a regular crystal structure - Answer Amorphous
Kinds and relative quantities of atoms that make up a material - Answer Chemical composition
Written description of a material's chemical make-up - Answer Chemical formula
Any gem material other than diamond - Answer Colored stone
Regular, repeating internal arrangement of atoms in a material - Answer Crystal structure
A gemstone's ability to withstand wear, heat and chemicals - Answer Durability
A US Government agency that issued guidelines for the jewelry trade - Answer Federal Trade
Commission
A broad gem category based on chemical composition and crystal structure - Answer Gem
species
A subcategory of species, based on color, transparency or phenomenon - Answer Gem variety
, The appearance of a material's surface in reflected light - Answer Luster
A natural, inorganic substance with a characteristic chemical composition and usually
characteristic structure - Answer Mineral
Gems produced by natural processes, without human help - Answer Natural gems
How well a gemstone resists the effect of light, heat, and chemicals - Answer Stability
How well a gemstone resists breaking, chipping and cracking - Answer Toughness
Degree to which a material allows light to pass through it - Answer Transparency
____ requires the interaction of light, an object and an observer - Answer Color
A gem's chemical composition and crystal structure affect the way it ________ light - Answer
Absorbs and returns
Each gem species or variety has its own ________ and its own best color within that range -
Answer Color range
In some gem varieties, slight variations in hue, tone and saturation can make a ____ difference
in price - Answer Tremendous
The cloudy bluish white light in a moonstone, caused by scattering light - Answer
Adularescence
Crossing of chatoyant bands, creating a star in the dome of a cabochon - Answer Asterism
A glittery effect caused by light reflecting from small, flat inclusions within a gemstone - Answer
Adventurescence
Questions and Already Passed Answers
2025-2026 Update.
Most gems are ____ - Answer Minerals
All ____ possess some degree of beauty, rarity and durability - Answer Gems
____ is the most important factor in colored stone's beauty - Answer Color
Most gems are somewhere in the middle of the ____ scale - Answer Rarity
Lacking a regular crystal structure - Answer Amorphous
Kinds and relative quantities of atoms that make up a material - Answer Chemical composition
Written description of a material's chemical make-up - Answer Chemical formula
Any gem material other than diamond - Answer Colored stone
Regular, repeating internal arrangement of atoms in a material - Answer Crystal structure
A gemstone's ability to withstand wear, heat and chemicals - Answer Durability
A US Government agency that issued guidelines for the jewelry trade - Answer Federal Trade
Commission
A broad gem category based on chemical composition and crystal structure - Answer Gem
species
A subcategory of species, based on color, transparency or phenomenon - Answer Gem variety
, The appearance of a material's surface in reflected light - Answer Luster
A natural, inorganic substance with a characteristic chemical composition and usually
characteristic structure - Answer Mineral
Gems produced by natural processes, without human help - Answer Natural gems
How well a gemstone resists the effect of light, heat, and chemicals - Answer Stability
How well a gemstone resists breaking, chipping and cracking - Answer Toughness
Degree to which a material allows light to pass through it - Answer Transparency
____ requires the interaction of light, an object and an observer - Answer Color
A gem's chemical composition and crystal structure affect the way it ________ light - Answer
Absorbs and returns
Each gem species or variety has its own ________ and its own best color within that range -
Answer Color range
In some gem varieties, slight variations in hue, tone and saturation can make a ____ difference
in price - Answer Tremendous
The cloudy bluish white light in a moonstone, caused by scattering light - Answer
Adularescence
Crossing of chatoyant bands, creating a star in the dome of a cabochon - Answer Asterism
A glittery effect caused by light reflecting from small, flat inclusions within a gemstone - Answer
Adventurescence
