Labradorite is an associate of the feldspar family of crystals which comprises around 50-80% of calcium alumino-silicate. The leftover 30-50% of Labradorite is sodium alumino-silicate. It was first revealed in 1770 on the Labrador Peninsula in Canada where it gets its name. Labradorite is one of the lime-soda feldspars, together with bytownite and anorthite. These crystals are rare. However, when found in fine ranking, they are pale yellow.
The mineral of the feldspar family is the most plentiful in the Earth's coating. Actually, there are more feldspars in the Earth's coating than all the other minerals combined. The mainstream of the collective feldspars falls into two groups, the alkali feldspar and the plagioclase feldspar. Labradorite is an associate of the plagioclase series by a chemical composition variety just past the center among albite which is a clean sodium alumino-silicate as well as anorthite which is composed nearly entirely of calcium alumino-silicate.
Labradorite includes two crystals; one of sodium-ironic aluminum silicate, and the other, of calcium-rich aluminum silicate. This is known as twinning. Twinning is not exclusive to Labradorite - certainly, all associates of the plagioclase group show lamellar twinning named ‘Albite Twinning.’ Twinning is a procedure which happens through crystal growth while the crystal is exposed to stress or temperature/pressure situations that differ from those which it formerly formed. In this method, two or more inter-grown crystals are shaped in a symmetrical style. These symmetrical inter-growths of crystals are called twinned crystals.
Labradorite is a significant feldspar gemstone. It frequently displays an attractive iridescent play of colors, which could appear to move as the stone is rotated. Labradorite gemstones frequently have a dark base color of metallic-looking color plays of blue, green, yellow, and red. Refractive index varies because of the mixture of several components. Mohs hardness is 6.0 – 6.5. Refractive index of Labradorite is 1.55 – 1.57. The Formula is NaAlSi3O8 CaAl2Si2O8, and specific gravity is 2.55 – 2.76. Its luster is vitreous to pearly.
An alternative characteristic feature of Labradorite is an optical feature named Iridescence which is hue variations from the angle from which the surface is observed. Labradorite displays diverse colors from varied angles when exposed to light. Gemstone diversities of Labradorite displaying a high degree of iridescence are named Spectrolite and a talented jeweler could produce some stunning outcomes.
In crystal healing, people use this stone when a person is feeling down, anxious, or, when energy is drained. It is believed to help in strengthening your will, as well as feelings of internal worth, together with building inner firmness, perseverance, and purpose.