Description
Iolite (Neeli) Gemstone 5.29ct
Description
This Iolite (Neeli) is Gemstone Which is Blue Color, it’s Originates from India and it’s Exact Weight is 5.29ct the Measurements are 11.93×10.95×6.04mm. The Shape and Cut of This Stone is Oval Cabochon It’s Graded Transparent And Clarity is Excellent. This 5.29ct Iolite (Neeli) Gem is Available For Ready to Ship Anywhere in The World. You Can Also Select Certification And Shipment Method As Optional
Details
Summary No | AK14206 |
Species | Natural Iolite (Neeli) |
Weight | 5.29ct |
Shape/cut | Oval Cabochon |
Color | Blue |
Dimension | 11.93×10.95×6.04mm |
Clarity | Excellent |
Transparency | Transparent |
Origin | India |
Treatment | None |
Iolite (Neeli) Gemstone 5.29ct
Properties Of Iolite
Chemical Composition: (Mg,Fe)2 Al4Si5O18 [Magnesium Aluminum Silicate]
Hardness: 7.0 – 7.5
Specific Gravity (Density) : 2.60 – 2.66 (g/cm3)
Refractive Index : 1.527 – 1.578 Biaxial ( – )
About Iolite Gemstone
Cordierite is also called Iolite, Dichroite or even “water sapphire” due to its frequent sapphire blue colors. Although Iolite is the widely used name for this gem, Cordierite is the IMA recognized name for the mineral species. Iolite has intense and distinct pleochroism showing colors of blue, violet, smoky blue and gray when viewed from different angles. Hardness of iolite is 7-7.5 makes iolite a suitable jewelry stone, though the presence of cleavage must be taken into account and some care taken, such as protection from blows. Iolite’s crystal structure is very similar to that of Beryl and is a member of the Beryl series of minerals. Iolite rarely contains inclusions of hematite plates that create a beautiful schiller effect.
Although Cordierite is found in many locations worldwide, relatively few produce fine, gem-quality crystals. Some of the better-known sources of Iolite gems are Coroaci, Minas Gerais, Southeast Region, Brazil; around Tiruchchirappalli and Coimbatore, Tamil Nadu, India; Tranomaro area, Amboasary Department, Tuléar Province, Madagascar; and from the gem gravels of Sri Lanka.