Most of the tourmalines used as gemstones are the lithium rich stones known as elbaite. Colors of tourmaline are rare green pink and purplish red gemstones from deposits near the city of ibadan in nigeria s oyo state. Of the standard elbaite colors blue indicolite gems are typically the most valuable followed by green verdelite and pink to red rubellite. Prices for fine tourmaline also exhibit a wide range. Blue green red yellow pink etc.
Tourmaline of all colors are faceted into gems for jewelry but the red green blue and multicolored stones especially watermelon are the most popular. Tourmaline can be found in fairly large transparent crystals and these can produce very large exquisite and flawless gemstones. Beautiful colorful phenomenal tourmaline may be the world s most versatile and varied gemstone. Tourmaline has a variety of colors. Rarely it is colorless bi colored and multicolored crystals are common reflecting variations of.
Nevertheless once cut and set in jewelry tourmalines are very durable stones. Although the differences in colors can be explained by the stone s mineral compositions some believe that tourmaline meaning and uses of the different colors can vary from hue to hue. Usually iron rich tourmalines are black to bluish black to deep brown while magnesium rich varieties are brown to yellow and lithium rich tourmalines are almost any color. Tourmaline s colors have many different causes. The semi precious stone tourmaline grows in a number of colors ranging from black to blue to pink.
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Tourmaline s colors have many different causes. Wonderfully wearable with a colorful brilliance tourmaline is a group of related gemstones whose differences in composition result in a plethora of attractive colors. Some pink and yellow tourmalines might owe their hues to color centers caused by radiation which can be natural or laboratory induced. They can occur in almost any color especially blue green red yellow and pink. Benjamin wilson experimented with the electrical properties of tourmaline.Tourmaline is available in more colors than any other gemstone so it is fitting that it serves as the birthstone for october when the seasons change in the northern hemisphere and trees are alive with color. Chrome tourmaline is a rich green color due to the presence of chromium atoms in the crystal. Manganese produces reds and pinks and possibly yellows. Tourmaline rough can challenge even experienced gem cutters. Multi colored gems are often weak where the colors meet but all color varieties may have stressed areas.
Some of them are bicolor and a few are oriented to show pleochroism with the color looking down the long axis of the crystal being much darker than when looking at the crystal in side view. Some of them are bicolor and a few are oriented to show pleochroism with the color looking down the long axis of the crystal being much darker than when looking at the crystal in side view. Tourmaline is available in more colors than any other gemstone so it is fitting that it serves as the birthstone for october when the seasons change in the northern hemisphere and trees are alive with color. Tourmaline s colors have many different causes. Nevertheless once cut and set in jewelry tourmalines are very durable stones.
Multi colored gems are often weak where the colors meet but all color varieties may have stressed areas. Tourmaline of all colors are faceted into gems for jewelry but the red green blue and multicolored stones especially watermelon are the most popular. Most of the tourmalines used as gemstones are the lithium rich stones known as elbaite.
