Nascent Drama

[The Dork Lord]

The large number of green pigments makes it impossible to mention them all.

 

[The Dork Lord]

Among the more famous green minerals, however is the emerald, which is colored green by trace amounts of chromium and sometimes vanadium.[15]

 

[The Dork Lord]

Chromium(III) oxide (Cr2O3), is called chrome green, also called viridian or institutional green when used as a pigment.[16]

 

[The Dork Lord]

For many years, the source of amazonite's color was a mystery.

 

[The Dork Lord]

Naturally, many people assumed the color was due to copper because copper compounds often have blue and green colors.

 

[The Dork Lord]

More recent studies suggest that the blue-green color results from small quantities of lead and water in the feldspar.[17]

 

[The Dork Lord]

Copper is also the source of the green color in malachite pigments, chemically known as basic copper(II) carbonate.[18]

 

[The Dork Lord]

Early painters would also use copper in the form of verdigris mixed with wax and turpentine to create green pigmentation in paints.[19]

 

[The Dork Lord]

Mixtures of oxidized cobalt and zinc were also used to create green paints as early as the 18th century.[20]

 

[The Dork Lord]

A more complete list of green minerals and pigments can be seen here.

 

[The Dork Lord]

There is no natural source for green food colorings which has been approved by the US Food and Drug Administration. Chlorophyll, the E numbers E140 and E141, is the most common green chemical found in nature, and only allowed in certain medicines and cosmetic materials.[21]

 

[The Dork Lord]

Quinoline Yellow (E104) is a commonly used coloring in the United Kingdom but is banned in Australia, Japan, Norway and the United States.[22]

 

[The Dork Lord]

Green S (E142) is prohibited in many countries, for it is known to cause hyperactivity, asthma, urticaria, and insomnia.[23]

 

[The Dork Lord]

To create green sparks, fireworks use barium salts, such as barium chlorate, barium nitrate crystals, or barium chloride, also used for green fireplace logs.[24]

 

[The Dork Lord]

Copper salts typically burn blue, but cupric chloride (also known as "campfire blue") can also produce green flames.[24]

 

[The Dork Lord]

Green pyrotechnic flares can use a mix ratio 75:25 of boron and potassium nitrate.[24]

 

[The Dork Lord]

Smoke can be turned green by a mixture: solvent yellow 33, solvent green 3, lactose, magnesium carbonate plus sodium carbonate added to potassium chlorate.[24]

 

[The Dork Lord]

In biology

 

[The Dork Lord]

Green is common in nature, especially in plants.

 

[The Dork Lord]

Many plants are green mainly because of a complex chemical known as chlorophyll which is involved in photosynthesis.[9]