Friday , 21 January 2022
Breaking News
Home » Chemistry in Life » Gemstones Colors and Transition Metals

Gemstones Colors and Transition Metals

Gemstones are minerals that can be polished or cut for use as an ornament or jewelry. The color of a gemstone comes from the presence of trace amounts of transition metals. Take a look at the colors of common gemstones and the metals responsible for their color.

Amethyst

Amethyst

The name for amethyst derives from the Greek and Roman belief that the stone helped protect against drunkeness. Vessels for alcoholic beverages were made from the gemstone. The word is from the Greek a- (“not”) and methustos (“to intoxicate”).

 

aquamarine

 

Aquamarine

Aquamarine gets its name for the Latin phrase aqua marinā, meaning “water of the sea”. This pale blue gemstone-quality beryl (Be3Al2(SiO3)6) exhibits a hexagonal crystal system.

 

 

emrald

 

 

Emerald

Emerald is another form of beryl, this time in a green color due to         the presence of both iron and titanium.

 

 

 

Garnet

   Garnet

Garnet gets its deep red color from iron.

 

 

 

Sapphire

Sapphire

Corundum is any color besides red is called sapphire. Blue sapphires are colored by iron and titanium.

 

 

 

Read more at  http://chemistry.about.com/

 

 

 

Check Also

Mole Week 2017

Some images of activities from mole week 2017.