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WorksheetsPhenomenal Gemstone
Total questions: 21
Worksheet time: 12mins
What is the 3 traits of Gems?
Beauty, Rarity, Durability
Beauty, Hardness, Uniqueness
Beauty, Exclusiveness, Durability
Beauty, Rarity,
Hardness
Malachite is an opaque stone.
True
False
To understand the color you need to know the hue, tone and saturation.
True
False
Star-sapphire is always in a pear shaped cut.
True
False
Which gemstone is a color-zoning gem?
Watermelon tourmaline
Lapis Lazuli
Pearl
Garnett
What do you call the star pattern in the dome cabochon of the Star-Sapphire?
(a)
Is this a natural or a synthetic Star-Ruby/Star-Sapphire?
Natural
Synthetic
Chatoyancy is a narrow band of light seen on the surface cause by reflection of light from numerous needle-like inclusion.
True
False
Is this a natural or a synthetic Opal?
Natural
Synthetic
What do you call this gem?
(a)
Gems that display unusual optical effects are classified as ...
phenomenal
rare
extraordinary
precious
How are pearls formed?
Pearls are formed when an irritant enters the mollusk/oyster
Pearls are formed by mermaids
Pearls are formed when the fish is eaten by the oyster
Pearls are manmade gemstones
What are the type of Pearls?
Freshwater
South Sea
Akoya
Tahitian
All above
What do you call, when the irritant is purposely placed inside the oyster through human intervention?
(a)
What is an Opal Doublet or Triplet?
There's double and triple opal
Doublet is the amount of color seen in an opal and triplet is the sizes of an opal
Doublets consist of two layers adhered together with glue and triplets consist of three layers
Doublets and triplets is the amount of inclusions seen in an opal
Orient is the term iridescence seen in some ....
Fire agates
Pearls
Cats Eye
Labradorites
Moonstone's famous inclusion is called "Centipede".
True
False
Labradorite has what phenomena effect?
Color zoning
Asterism
Adventurescene
Labradorescene
Is Cats eye and Alexandrite from the same family (group) called Chrysoberyl?
True
False
What is the birthstone for the month of October?
Ruby
Opal
Pearl
Citrine
Which oyster/mollusk is commonly known as the black-lipped pearl oyster?
Pinctada Margaritifera
Pinctada Fucata
Pinctada Maxima
Hyriopsis Cumingii
