Enhancements
Chrome tourmaline is not enhanced.
More information on gemstone enhancements.
Chrome Tourmaline ...
CHROME TOURMALINE
Although most tourmalines are not worth collecting, in the 1970s two mines were discovered by African miner Ali Giowatta in Tanzania. These gems do not look the like the somewhat ugly green tourmaline from Brazil.
Chrome Tourmaline
Chrome tourmaline is a beautiful bottle-green variety of the gemstone. Gem-quality chrome tourmaline is quite pricey and is found in East Africa; our beads are from lesser-grade material that has visible inclusions.
Chrome tourmaline from Tanzania features an intense, almost emerald green color. Photo: Wimon Manorotkul
The wide variety of colors possible in tourmaline is illustrated by this stunning crystal from California's Himalaya Mine.
A fine chrome tourmaline, a vivid, slightly (five to ten percent) bluish green of about eighty-five percent tone.
The name "chrome tourmaline" is somewhat of a misnomer, as many chrome dravite tourmalines can also have a predominance of vanadium, and dravite colored primarily by vanadium can have the same green color as dravite colored by chromium.
However, if its fine emerald-like green is caused by tiny traces of chrome, it is referred to as a 'chrome tourmaline'.
Chrome Tourmaline is colored by chromium resulting in a beautiful green stone that is often confused with emerald or the tsavorite garnet. Indicolite is a dark blueish black stone.
One particularly beautiful variety is chrome tourmaline, a rare type of tourmaline from Tanzania which occurs in a very rich green color caused by chromium, the same element which causes the green in emerald.
Green tourmaline has become popular with collectors over recent years as they realize the true potential of this beautiful gem. Chrome tourmaline is an intense green variety of tourmaline found in East Africa.
Dealers who saw this material when it first surfaced in Europe raved about the resemblance of its color to that of tsavorite and chrome tourmaline and raved as much about its price: only a fraction of these gems.
Tourmaline: Indicolite (or blue; Fe), Rubellite (or pink; Fe), Chrome Tourmaline (Cr; Green), Watermelon, Bicolored, Parti-colored.
Topaz: Imperial (brown-orange), Blue; both by color centers.
Once again, green is a very important color, from electrically charged peridot and tsavorite to cooler emerald and chrome tourmaline.
Greens - there are two distinct families of green tourmaline, one contains trace amounts of chromium (and coincidentally is called Chrome Tourmaline). It has a high value.
GREEN is the cosmic color transmitted by emeralds and other green gems.
Gemstones governed by Mercury include emerald, peridot, tsavorite, chrome tourmaline, chrome diopside, green jade and other natural green gems of flawless (eye-clean) quality ...
Most of tourmaline stones tend to be less than one ct. The ParaÃba tourmaline is an extremely rare variety of the faceted stones above 2 carats. The chrome tourmaline has a rare quality and size that is above 10 carats.
Imitation ...
A well cut piece of chrome diopside is a beautiful sight to behold, and a reasonably priced alternative to Tsavorite or chrome tourmaline.
...
Winter 1967, Chrome tourmaline of Tanzania, p. 242, 3pp.
Spring 1975, New find of gem tourmaline from Newry Mt., Me., p. 19, 6pp.
Spring 1975, A rock with green tourmaline and ruby, mixed, p. 27, 1p.
Most Tourmaline comes from Brazil, additional locations where it is found are Rhodesia, Mozambique, South West Africa, and the United States. The most popular colors of Tourmaline are pink, and green which is also known as Chrome Tourmaline.
Chrome tourmaline -- vivid green. Derives its color from chromium. Appears red when viewed through a Chelsea filter (emerald filter). Fairly scarce and expensive.
Achroite -- colorless tourmaline. Fairly rare.
 See also: Chrome, Tourmaline, Stone, Color, Emerald
  
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