trichroic The breaking up of light into three constituent rays, each containing a portion of the visible spectrum (rainbow).
Trichroic
Refers to a gem that appears three different colors or shades when viewed from different directions.
Tri-color ...
distinct trichroic; less red or yellow/golden yellow; zincian staurolite: yellow, green, red
Luminescence
inert ...
Strongly trichroic: greenish, reddish and yellowish
Phenomena
Change of color, cat’s eye ...
Tanzanite is trichroic: that is, it shows different colors when viewed in different directions. One direction is blue, another purple, and another bronze, adding subtle depths to the color.
Tanzanite is a trichroic gem which displays three layers of color. The colors dark blue, green-yellow and red-purple can be seen. Nearly all tanzanite has been heat treated to generate the beautiful violet-blue color this stone is known for.
Sphene exhibits trichroic properties showing green ,red, yellow and transparent tints. Normally facets are given to this stone because it makes it dazzle and adds to its beauty.
This material actually shows a strong violet red / deep blue / yellow green trichroic coloration, meaning that different colors are displayed when the stone is viewed in different directions.
It's trichroic nature, which shows shades of brown, green and reddish brown depending on the path of light through the crystal, can be enhanced by specific orientation and cut.
While tanzanite is typically heat treated to enhance its blue color, it is naturally trichroic, meaning that it displays three different colors (blue, purple and bronze) when viewed from different angles. Tanzanite exhibits a hardness of 6.
It is also trichroic, meaning that light entering the gem is split into 3 different wavelengths. As a result, tilting the gem in 3 different directions one is sometimes able to see 3 different colors ...
Tanzanite is one of the only gem stones in the world that is "trichroic".
The color of all gemstones change in varied light conditions but tanzanite has a special color characteristic called 'Trichroic'. Tanzanite displays 3 shades of color at once even when the light conditions remain constant.
This stone has a watery edge effect called trichroic. It exhibits different colors when viewed from different directions. Because of its low resistance to ultrasound, it should not be cleaned in ultrasonic cleaners.
With trichroism, three colors are perceived when observing the stone from two different directions. Minerals in the monoclinic, orthorhombic, and triclinic crystal system are trichroic, and can show three colors.
Tanzanite is basically the Blue variety of "Zoisite", and mined in Tanzania just below the majestic Mount Kilamanjaro.Tanzanite is a trichroic gemstone, meaning that it exhibits one of three colors depending on which way the crystal is viewed.
If one new colour is determined along with one of the colours of previous orientation, the gemstone exhibits trichorism. Trichroic gems show three different colours when viewed in three directions perpendicular to each other.
The gem is also known for displaying gorgeous color spectrum which is a result of its trichroic nature.
The source of its mesmerizing color is that tanzanite is trichroic: that is, it shows different colors when viewed in different directions. One direction is blue, another purple, and another bronze, adding subtle depths to the color.
trichroic Synonym of pleochroic. triclinic crystal system Any mineral that falls under the following specifications belongs to the triclinic crystal system: Three axes, all of them are unequal in length, ...
 See also: Color, Stone, Gemstone, Gem, Crystal
  
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