Tourmaline Gemstone Colors
Tourmaline has a variety of colors. 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.
Benjamin wilson experimented with the electrical properties of tourmaline.
Tourmaline gemstone colors. 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. Nevertheless once cut and set in jewelry tourmalines are very durable stones. Some pink and yellow tourmalines might owe their hues to color centers caused by radiation which can be natural or laboratory induced.
Prices for fine tourmaline also exhibit a wide range. Tourmaline can be found in fairly large transparent crystals and these can produce very large exquisite and flawless gemstones. Most of the tourmalines used as gemstones are the lithium rich stones known as elbaite.
Multi colored gems are often weak where the colors meet but all color varieties may have stressed areas. Wonderfully wearable with a colorful brilliance tourmaline is a group of related gemstones whose differences in composition result in a plethora of attractive colors. Tourmaline s colors have many different causes.
Chrome tourmaline is a rich green color due to the presence of chromium atoms in the crystal. Of the standard elbaite colors blue indicolite gems are typically the most valuable followed by green verdelite and pink to red rubellite. Rarely it is colorless bi colored and multicolored crystals are common reflecting variations of.
A couple dozen small tourmaline crystals in pretty colors from afghanistan suitable for faceting very small stones. Blue green red yellow pink etc. 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.
Beautiful colorful phenomenal tourmaline may be the world s most versatile and varied gemstone. Manganese produces reds and pinks and possibly yellows. Tourmaline rough can challenge even experienced gem cutters.
Tourmaline s colors have many different causes. Colors of tourmaline are rare green pink and purplish red gemstones from deposits near the city of ibadan in nigeria s oyo state. The rarest and most expensive tourmaline is the paraiba variety a neon like blue or green that is colored by traces of.
They can occur in almost any color especially blue green red yellow and pink. The semi precious stone tourmaline grows in a number of colors ranging from black to blue to pink. 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 of all colors are faceted into gems for jewelry but the red green blue and multicolored stones especially watermelon are the most popular. It s generally agreed that traces of iron and possibly titanium induce green and blue colors.
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