How do Gemstones get their Colors ?

       The most common cause of color in gemstones is the presence of a small amount of a transition metal ion. Most gemstones are allochromatic, meaning that they are colored by impurities or trace elements in their crystal structure.

Gemstone Mines of the World Map

What is the Most Precious Gem in the World ?

 Hope Diamond

• The Hope Diamond is a large, 45.52-carat, deep-blue diamond, and now housed in the Smithsonian in Washington D.C., United States. The gem has a long and mysterious past, and some people even think it is cursed !
• The Hope Diamond grew deep within the Earth at high temperatures and pressures, then survived a perilous journey to the surface. No one knows its exact age, but scientists have dated the rocks in which Indian diamonds are found at about 1.1 billion years old.

Top 10 Open-Pit Mines in the World

 

 

What is the Oldest Rock on Earth ?

Zircon

The tiny piece of zircon crystal was extracted from a rock on a sheep ranch in Jack Hills, Western Australia and is a staggering 4.4 billion years old.

Zircon

Where do Pearls come from ?

Australia – China – India – Indonesia – Japan – Myanmar – Philippines – Tahiti.

• A pearl is formed by a oyster.
• It takes a pearl 2-7 years to form.
• Perfectly round pearls are the rarest and most valuable.
• Pearls dissolve in vinegar.

 

Where are Sapphires found ?

• Sapphires are mined as early as 7th century BC in India.
• Blue sapphires are mainly found in India, Sri Lanka, Burma and Thailand.
• Blue Sapphire stone is also called “neelam ratna” in hindi.
• It is acknowledged to fastest and strongest gemstone among all the other gemstones.

Why is it called the Ring of Fire ?

 Because its edges mark a circle of high volcanic and seismic activity.

Where are Rubies found ?

   

Where are Emeralds found ?