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Smokey green Tourmaline

Fabulous, kind of forrest green, round faceted Tourmaline.

 

Size: 5x5 mm

Clarity: Not stated ( My opionon VVS to VSI

Origin: Brazil

In stock:  1-2

 

Price:  USD 8.95 a piece80,00 SEK

Tourmaline mineral group is chemically one of the most complicated groups of silicate minerals, and a six-member ring cyclosilicate having a trigonal crystal system. Tourmaline is found in granite and granite pegmatites and in metamorphic rocks such as schist and marble. Schorl and lithium-rich tourmalines are usually found in granite and granite pegmatite. Magnesium-rich tourmalines, dravites, are generally restricted to schists and marble.

Tourmaline has the widest variety of colours among all gemstones. The colour ranges from  black, blue, green, red, yellow, pink, etc. Hence, it is often mistaken for many different gemstones. Some of the historically most famous “rubies” has proven to actually be rubelliter, i.e. ruby-like tourmalines. An example of such a “ruby”, which is actually a tourmaline, is the stone in a piece of jewelry that Gustav III donated to the Russian Empress Catherine the great. It is 4 cm long and weighs 255 carat (51 g). The jewellery is now available in Kremlmuseet in Moscow. The colour richness is due to that even minimal changes in the chemical composition gives rise to very large colour changes. Some forms of tourmaline are dichroic, in that they change colour when viewed from different directions; a beautiful colour-effect when the stone is slowly turned. Bi-coloured and multicoloured crystals are common, reflecting variations of fluid chemistry during crystallization.The name comes from the Sinhalese word "Turmali" or "Thoramalli", which means “mult coloured stone”, and applied to different gemstones found in Sri Lanka.

Major deposits of tourmaline is found in Sri Lanka, Brazil, Madagascar, Afghanistan and Mozambique (red and bi-coloured stones). Smaller deposits is found in Angola, Australia, Burma, India, Rhodesia, Namibia, Tanzania, Thailand, the former Soviet Union, and in the United States.

Tourmaline is a durable stone that can withstand wear well and therefore is an excellent piece of jewelry stone. It gives you happiness, strength and health.

 

CLARITY CLASSIFICATION
IF Internally Flawless No Inclusions Visible Even With 10x Magnification.
VVS Very-Very Slightly Included Minute Inclusions Not Visible To Eye.
VSI Very Slight Inclusions Slight Inclusions Visible To Eye.
SI 1-2 Slight Inclusions: Some Inclusions Visible.
I 1-3 Included Many Inclusions Visible. 807163324

 

 

 

 

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Latest update: 28 augusti 2015