29.10 Cts Natural Polished Tourmalinated Quartz Needles Inclusions Mineral Specimen Collection Healing Crystal Cabochon
.:: Product Details ::.
This stunning natural tourmalinated quartz displays needle-like inclusion and amazing rainbow iridescent effects. Beautiful piece to add to any specimen collection! :)
Dimensions: 19.79 x 21.89 x 9.79 mm
Weight: 29.10 Cts
.:: About Tourmalinated Quartz ::.
Quartz is the most common mineral on Earth. It is found in nearly every geological environment and is a component of almost every rock type. It makes up about 12% of the earth's crust, occurring in a wide variety of igneous, metamorphic and sedimentary rocks. It is also the most varied in terms of variety and color. Quartz is a 7 on the Mohs scale of hardness.
Although Tourmaline may be found on every continent, fine crystal specimens and gems are still considered rare and can be quite expensive. Its vast popularity as a gemstone began in 1876, when mineralogist and jeweler George Kunz sold a Green Tourmaline from Maine to the famous Tiffany and Co. in New York, and its desirability spread. More recently it has become a favorite of metaphysical collectors and practitioners for its versatile energy properties.
Tourmaline belongs to a complex family of aluminum borosilicates mixed with iron, magnesium, or other various metals that, depending on the proportions of its components, may form as red, pink, yellow, brown, black, green, blue or violet. Its prismatic, vertically striated crystals may be long and slender, or thick and columnar, and are uniquely triangular in cross-section. They often vary in coloration within a single specimen, lengthwise or in cross sections, and may be transparent or opaque. The name Tourmaline comes from an ancient Sinhalese word turmali, meaning “a mixed color precious stone,” or turamali, meaning “something small from the earth.”
The most common species of Tourmaline is Schorl, which accounts for ninety-five percent of all Tourmaline in nature. It is black, or sometimes a blue so deep it appears to be black. The term Schorl was in use before the 1400s, named for a town in Saxony, Germany, where Black Tourmaline was found in nearby tin mines.
Needles of Black Tourmaline, or Schorl, can also be found embedded in clear Quartz, called Tourmalinated or Tourmalated Quartz.
(Information from: http://www.crystalvaults.com/crystal-encyclopedia/black-tourmaline)
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