What element is it that gives amethyst its violet color?

What element is it that gives amethyst its violet color?

Amethyst is a purple variety of quartz (SiO2) and owes its violet color to irradiation, iron impurities (in some cases in conjunction with transition element impurities), and the presence of trace elements, which result in complex crystal lattice substitutions.

Who is the oldest Victoria’s Secret model?

Meet the longest-running Victoria’s Secret Angel in the business. Adriana Lima, who became an Angel in 2000, beats out heavy-hitters like Gisele Bündchen (7 years), Tyra Banks (8 years), and Heidi Klum (11 years) for the title. And the Brazilian model is still under contract with the brand.

What was the first bird to be domesticated by man?

The goose was the first bird to be domesticated by man. An ancient story tells how a flock of white geese raised the alarm when Rome was attacked by the Gauls, and thus saved the city.

What library has the most books?

The Law Library of Congress is the world’s largest law library, with 2.9 million volumes, including one of the world’s best rare law book collections and the most complete collection of foreign legal gazettes in the United States.

How can a bill vetoed by the President be overturned?

By threatening a veto, the President can persuade legislators to alter the content of the bill to be more acceptable to the President. Congress can override a veto by passing the act by a two-thirds vote in both the House and the Senate.

How did horseradish get its name?

In German, it’s called “meerrettich” (sea radish) because it grows by the sea. Many believe the English mispronounced the German word “meer” and began calling it “mareradish.” Eventually it became known as horseradish. The word “horse” (as applied in “horseradish”) is believed to denote large size and coarseness.

Who was the god of love?

Eros (/ˈɪərɒs/ or US /ˈɛrɒs/; Greek: Ἔρως, “Desire”), in Greek mythology, was the Greek god of love. His Roman counterpart was Cupid (“desire”). Some myths make him a primordial god, while in other myths, he is the son of Aphrodite.

What is the purpose of a caboose?

A caboose is a manned North American rail transport vehicle coupled at the end of a freight train. Cabooses provided shelter for crew at the end of a train, who were required for switching and shunting, and to keep a lookout for load shifting, damage to equipment and cargo, or overheating axles (hot boxes).