Chrome Tourmaline
 Luscious Chrome Green Color Tourmaline Facet Rough 1 US $69.95 
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 100ct Lot Kenya Chrome Tourmaline Facet Rough US $24.99
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 940cts Cream Piece Gemmy Lustrous Vivid AAA Natural Chrome Green Tourmaline US $799.00
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 FREAKINGCAT 033 ct CHROME TOURMALINE AFRICA US $99.00
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 250ct Lot Kenya Chrome Tourmaline Facet Rough US $49.99
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 MASTER CUT CHROME TOURMALINE 135ct SPECTACULAR RED UNDER CHELSEA FILTER US $175.00
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 Chrome Tourmaline AA Gem Cabochon HS WoW US $795.00
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 2690CtTwinkling Chrome Tourmaline Look Green Quartz US $29.99
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 75CT STUNNING RARE BI COLOR NAMIBIAN CHROME TOURMALINE US $179.99
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 A CHROME TOURMALINE SHADED FAC RONDELL 7 ST 1071 US $11.29
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 125CT CHROME TOURMALINE GREEN TOP OVAL GEMNATURAL US $39.99
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 075CT CHROME TOURMALINE GREEN TOP OVAL GEMNATURAL US $31.99
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 085CT CHROME TOURMALINE GREEN TOP OVAL GEMNATURAL US $31.99
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 050CT CHROME TOURMALINE GREEN TOP ROUND GEMNATURAL US $26.99
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 212CT STUNNING GOLDEN GREEN NAMIBIAN CHROME TOURMALINE US $287.99
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 A MUST HAVE FOR ANY GEM COLLECTOR THIS SUPER RARE COLOR CHANGE CHROME TOURMALINE US $892.50
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 182ct VALUABLE TANZANIAN GREEN CHROME TOURMALINE PEAR US $89.99
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 157ct VALUABLE TANZANIAN GREEN CHROME TOURMALINE US $74.99
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 132ct VALUABLE TANZANIAN GREEN CHROME TOURMALINE PEAR US $64.99
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 256ct Notable Oval Portuguese Chrome Green Tourmaline US $399.00
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 CHROME TOURMALINE Crystal3cts 11x5mm natural US $6.95
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 159CT EXTREMEL NATURAL LUSTER GREEN CHROME TOURMALINE US $40.00
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 134CT STUNNING NATURAL LUSTER GREEN CHROME TOURMALINE US $35.00
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 125 ct NATURAL CHROME TOURMALINE US $399.00
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 096ct Vivid Chrome Green Hue Cushion VVS Tourmaline US $69.00
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 076CT NATURAL CHROME TOURMALINE COLOR RARE GEMSTONE FROM AFGHANISTAN US $19.50
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 070CT AMAZING AAA GREEN CHROME TOURMALINE TOP LUSTRE US $19.99
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 132CT STUNNING YELLOW GREEN NAMIBIAN CHROME TOURMALINE US $170.99
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 09Ct NATURAL TOP GREEN NEW CHROME TOURMALINE OVAL RARE US $25.00
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 080Ct NATURAL TOP GREEN CHROME TOURMALINE ROUND US $39.99
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 BEST EMERALD GREEN CHROME TOURMALINE ROUND 25 MM US $1.87
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 2275CTSSPARKLING SQUARE BRAZIL CHROME GREEN TOURMALINE QUARTZ LOOSE GEMSTONE N US $29.99
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 372ct SHIMMERING VIVID CHROME GREEN NATURAL GREEN TOURMALINE US $75.00
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 364ct SHIMMERING VIVID CHROME GREEN NATURAL TOURMALINE US $79.99
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 105CT CHROME TOURMALINE GREEN TOP OVAL GEMNATURAL US $24.99
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 175CT XX RARE TANZANIA SINGLE SOURCE CHROME TOURMALINE US $224.99
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 128CTVS STUNNING DARK GREEN NAMIBIAN CHROME TOURMALINE US $152.99
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 SUPERB Large 10ct Honey Amber Tourmaline Barion Faceted Gemstone Chrome Dravite US $515.70
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 109ct HI END LUSTROUS BEST GRADE CHROME TOURMALINE US $25.99
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 567ct ELEGANT NATURAL LUSTER GREEN CHROME TOURMALINE US $399.90
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 BEST EMERALD GREEN CHROME TOURMALINE MARQUISE 6x3 MM US $4.48
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 219Ct HI END LUSTROUS BEST GRADE CHROME TOURMALINE US $125.00
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 Nice775ct Splendid Brazil Lab Chrome Green Tourmaline US $14.77
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 Nice735ctGiant Brazil Lab Chrome Green Tourmaline Gem US $12.69
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 GREEN CHROME TOURMALINE 9X6 STEP CUT 180CT US $45.00
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 GREEN CHROME TOURMALINE 8X6 STEP CUT 155CT US $38.75
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I need a website for a science project.?
I need a website on chrome tourmaline, please and thank you(:
Questions I hope to find answers for:
What is the cost of mining or manufacture?
How is it processed or refined?
What is its geographic and market distribution?
What is the cost of the finished product, by the ton, pound, ounce, and gram?
What is its historical significance?
Is it necessary for commerce or just newly developed?
Once you have it, what do you do with it?
Its a lot, but please and thank you(:
I'm not looking for easy answers, just a website where most or all of this info can be found.
http://www.palagems.com/tourmaline_buyers_guide.htm
i found a lot of that on here
Chrome Diopside Gems
Looking for a fine green gemstone with rich color and excellent clarity? What are your choices? The traditional choice is emerald, though emerald is more famous for its color than its clarity. Tsavorite garnet came on to the market in the 1970's and became the second choice in fine green gems. High quality tsavorite not only had an excellent saturated green color, it had superior brilliance, clarity and hardness. The only problem is that tsavorite became so popular that the prices went as high or higher than emerald.
The next choice was a rare variety of green tourmaline known as chrome tourmaline. Like tsavorite garnet, chrome tourmaline is found in East Africa, and colored by trace amounts of chromium and vanadium. And like tsavorite, fine chrome tourmaline is a visually pure forest green with a slightly yellowish to bluish secondary hue. But chrome tourmaline turned out to be just as scarce and expensive as tsavorite garnet.
The only green gems left were peridot and ordinary green tourmaline. Peridot tended to the yellowish or olive green, and never had the deeper tones of tsavorite or chrome tourmaline. Ordinary green tourmaline rarely had the wonderful saturation of the rare chrome version.
This situation began to change in 1988 when a major new find of chromium-bearing diopside was discovered in Russia. Known as chrome diopside, the material didn't really begin to reach the market until after the Berlin Wall fell at the end of 1989. But here finally was a rich green gem at an affordable price -- under $100 a carat in smaller sizes.
The important diopside find in Russia is in eastern Siberia, close to the famous diamond mines. This diopside is colored by chromium, the same element that gives the color to ruby, emerald and alexandrite. The color was spectacular; chrome diopside literally glows with green. However, there are a few limitations to this gem. First, chrome diopside can actually suffer from too much green -- in larger sizes the tone can be very dark. Careful cutting is required in the larger sizes to keep the angles slightly shallow to improve brilliance. But in smaller sizes (under 2 carats) the color is exceptionally vivid and fresh.
The other limitation is that diopside is much softer than tsavorite garnet or tourmaline. At 5 to 6 on the Mohs scale, chrome diopside is not suitable for rings. But it is well suited for earrings and pendants and looks stunning when set in gold. Diopside jewelry should be stored carefully to avoid scratches from harder stones.
About the Author
GemSelect is a leading online dealer in fine gemstones, specializing in sapphire, spinel, tourmaline and zircon. Fine Tsavorite Garnet