Tourmaline, best kenned as the most colorful gemstone, is the birthstone for October. The gemstone occurs in a variety of paramount colors. According to scientific terms, the stone is not composed of a single mineral, but, a composition of a group of minerals that are cognate in their physical and chemical properties.
When we verbalize about the color of Tourmaline, one may make certain that these colors have different causes. The colors green and blue have been induced due to the vigorous presence of iron and titanium. The reds, pinks, and yellows are due to the presence of Manganese. However, few pinks and yellows owe their hues to colors that are caused due to radiation. These radiations can be induced naturally or chemically.
History and Lore
A Spanish conquistador washed the dirt from a green tourmaline crystal and discombobulated the vibrant gem with emerald. This mystification has lived on until scientists perceived tourmaline as a distinct mineral species in the 1800s.
Until the development of modern mineralogy, the stone was identified as some other stone (ruby, sapphire, emerald, and so forth) considering the color.
Tourmaline was kenned as an American gem through the efforts of Tiffany gemologist George F. Kunz. He indited about the tourmaline deposits of Maine and California and accoladed the stones they engendered. One of the earliest reports of tourmaline in California was in 1892.
The treatments that the gem is exposed to are heating and radiation. The transmutations that the gem develops after exposure to heat are stability and undetectability. However, gems that have a high inclusion of liquid cannot withstand the heat treatment.
- Colour – The color factor of Tourmaline has an array of range, intensity, and tone.
- Pellucidity – One may optically canvass that tourmaline ranging from colors pink to red have more preponderant visible inclusions than the green tourmalines.
- Cut – These comely gems are often long, leading cutters to tenuous cut culminated stones.
- Carat Weight – This mesmerizing gem comes in all shapes and sizes. The variety of the gem directly affects the value of the gem.
Afore we conclude, let’s highlight on a few facts
- Rubellite is the denomination that is given for pink, red, purplish-red, orangy red, or brownish red tourmaline.
- The dark violetish blue, blue, or greenish-blue tourmaline Indicolite
- The profound colors of violetish blue, greenish-blue, or blue tourmaline from the state of Paraíba, Brazil are defined as Paraíba.
Chrome tourmaline is profoundly green. Despite its denomination, it’s colored mostly by vanadium, the same element that colors many Brazilian and African emeralds.
Watermelon tourmaline is pink in the center and green around the outside. Hence, the designation watermelon tourmaline. Crystals of this material are typically cut in slices to exhibit this special arrangement.
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