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What is a gem of a person?
A gem of a person refers to a person who is well behaved, unique person, has a helpful nature, kind at heart, and the person is liked by all the people because of his goodness. The person is considered as a precious asset gem for his good qualities.
What is gem science definition?
Simply defined, a gem is “a precious or semiprecious stone, especially when cut and polished or engraved.” However, this definition is broad and falls apart when examined closely. Gems are crystalline minerals that occur naturally, or in some examples can be man-made (synthetic).
Is Pearl a gem?
Pearl is one of the oldest, most desired and most spectacular gemstones in the world. Formed differently to most gems, Pearl is an organic creation found in the sea, a natural phenomena that actually occurs as part of the defense mechanism of a mollusc shell.
How do you call someone a gem?
When someone says “you’re a gem” they usually mean that you are special or unique in some way or that you’ve done something special or unexpected. A “gem” is a gemstone, and each gemstone is both unique and valuable (though some are more valuable than others.) In normal usage, this is a positive statement.
What is gem in chemistry?
In chemistry, the descriptor geminal refers to the relationship between two atoms or functional groups that are attached to the same atom. Also the shortened prefix gem may be applied to a chemical name to denote this relationship, as in a gem-dibromide for “geminal dibromide”.
Is Opal a gem?
Opals are gorgeous gems, with the most beautiful Opal specimens containing every color of the rainbow. Their unique internal colors are one of the most fascinating visual effects created by nature, a phenomenon referred to as ‘play of color’.
Where are gems found?
Most gemstones form in the Earth’s crust, approximately 3 to 25 miles beneath the Earth’s surface. Two gemstones, diamonds and peridot, are found much deeper in the Earth. Diamond forms in “kimberlite pipes” that originate in the Earth’s mantle (>125 miles) and end at the surface.