The name labradorite originates from the Labrador region of Canada, where it was first discovered and named in 1770.
[Labradorite].
Mineral: Plagioclase feldspar
Chemical composition: composed of sodium feldspar and calcium feldspar molecules
Chemical formula: (Na,Ca)(Al,Si) 4O8
Crystal system: Triclinic
Refractive index: 1.562～1.672
Birefringence: 0.009
Dispersion value: 0.012
Specific gravity: 2.65～2.72
Hardness: 6.0～6.5
[Color].
The base color of natural labradorite is gray to gray-black tones with colored halo phenomenon. In the jewelry market, it is easier to see labradorite with blue and green flashes, while labradorite with orange, copper, and red flashes are less common. Generally speaking, good quality labradorite should have a bright luster and rich colors.
[Origin].
An important source of gem-quality labradorite is the mid-coast of northern Labrador, Canada, where it occurs in the form of coarse grains accompanied by purslane pyroxene. It is followed by the United States, Mozambique, Sri Lanka, Madagascar, and Finland.
Gem-quality labradorite is also produced in China's Hubei Shennongjia and Inner Mongolia.
[Variegated Labradorite].
Variegated labradorite is the most common gemstone among labradorites, and its most characteristic feature is the large bright variegated colors in the labradorite assemblage. Among the most beautiful colors are blue and green, almost comparable to the halo of a butterfly, in addition to yellow, golden yellow, red and purple can be seen, from different directions can appear different colors or color disappearance, in the process of turning the same part of the color and luster are changed, truly green and metaphysical, luminous.
[Color Change
Labradorite crystals mostly show flaky, plate-like structure, with glassy luster, containing different internal mineral elements, under the layers of overlapping, so that it produces interference and diffraction of light, thus showing color-changing properties, with the change of light caused by different color halo effect. This rainbow-like optical effect is called labradorescence, and sometimes the same labradorite surface can appear multiple halo colors at the same time, which is very bright and charming.
❄️ [Uses].
Labradorite can be used as decoration, gemstones, jewelry, toys, sculptures and so on.
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