Features of the Apatite stone:
With beauty and unique formation, the Apatite is also rich in features. A melange of phosphate minerals are present in an Apatite, the gem is rare and ranks five on the Mohs scale. The stone is sensitive and hence can easily brittle or scratch while forming a jewellery piece. Its extraordinary glare and physical characteristics have lured people from all over the world. Other than the incomparable properties, the apatite gemstone is widely used by people of all regions and professions, suggestion that it is not really priced high and is reasonable to buy.
Predominantly, this beautiful gemstone is found in two primary colours, light bluish-green and dark bluish-green. However, the place Madagascar is very popular for producing blue colour apatite gemstone in the world. It is available in fascinating tones and with the blue colour ruling the most, it successfully presents the depth like any wonderfully water body or a pool of blue.
Transparent specimens of Apatite mostly in blue, vivid green are showcased with excellent clarity. The gemstone is often heat-treated to enhance the vibrance and colour. Apatite gemstone often features Chatoyance appearance, which is also well recognized as Cat’s eye, in simple words reflecting and displays the effect like a cat’s eye.
The Apatite is available with indistinct cleavage quality. The stone is sensitive to heat and has brittle structure. The surface is offered with smooth Conchoidal fractures and hence has no planar surfaces of internal weakness or planes of separation
The blue coloured Apatite gem is very rare in a larger size, from Myanmar, it is generally produced of 10-carat however, in Brazil, they hardly range above 1-2 carats. The yellow Apatite from Mexico ranges up to 15-20 carats, but again the larger size than this is an exception. The smallest and rarest of all, the violet or dark blue stones usually are available less than 2 carats.
Apatite is a group of phosphate minerals, usually referring to hydroxyapatite, fluorapatite and chlorapatite, with high concentrations of OH⁻, F⁻ and Cl⁻ ions, respectively, in the crystal. The formula of the admixture of the three most common endmembers is written as Ca₁₂, and the crystal unit cell formulae of the individual minerals are written as Ca₁₂, Ca₁₆F₂ and Ca₁₆Cl₂.
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