Monday, September 28, 2015

ROCK TRIVIA: TOURMALINE ( stone of October )
Tourmaline has a variety of colors.from blues and greens, to reds, yellows and pinks.Gem and specimen tourmaline is mined chiefly in Brazil and Africa. 
Almost every color of tourmaline is found in Brazil, including a new blue and green variety that was found in the state of Paraíba. Another recent discovery in Mozambique has colors a bit less bright than the Brazilian, but it tends to be clearer and larger than that found in Brazil. 
Some fine gem quality material has been produced in the United States, During the early 1900s, Maine and California were the world's largest producers of gem tourmalines. Typically the colors are raspberry reds and bright pinks and mid-range greens as well as some bicolor in California.
Chrome tourmaline, found in Tanzania. is a rich green color due to the presence of chromium which also produces the green of emeralds.
Top quality indicolite (blue )and verdelite (green) are found in Afghanistan.These tourmalines have beautiful clarity and very intense color.
Pictured is The “Candelabra” Tourmaline, mined by Pala at the Tourmaline Queen mine in 1972. Today it is on public display at the Smithsonian Institution in Washington, DC. (Photo: Harold & Erica Van Pelt)

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