Substance Structure : (Mg,Fe)2 Al4Si5O18 [Magnesium Aluminum Silicate]
Hardness : 7.0 – 7.5
Particular Gravity (Thickness) : 2.60 – 2.66 (g/cm3)
Refractive Record : 1.527 – 1.578 Biaxial ( – )
Cordierite is additionally called Iolite, Dichroite or even “water sapphire” because of its continuous sapphire blue hues. Despite the fact that Iolite is the broadly utilized name for this diamond, Cordierite is the IMA perceived name for the mineral species. Iolite has serious and unmistakable pleochroism demonstrating shades of blue, violet, smokey blue and dark when seen from various edges. Iolite’s gem structure is fundamentally the same as that of Beryl and is an individual from the Beryl arrangement of minerals. Iolite once in a while contains incorporations of hematite plates that make a lovely schiller impact.
In spite of the fact that Cordierite is found in numerous areas around the world, moderately few create fine, pearl quality precious stones. A portion of the better known wellsprings of Iolite gemstone are Coroaci, Minas Gerais, Southeast Locale, Brazil; around Tiruchchirappalli and Coimbatore, Tamil Nadu, India; Tranomaro region, Amboasary Division, Tuléar Area, Madagascar; and from the jewel rock of Sri Lanka.