Description
Sphene 4.24ct
Description
This Sphene is natural gemstone which is Greenish color, it’s Originates from Sri Lanka and it’s exact weight is 4.24ct the measurements are 13.00×8.97×4.29mm the shape and cut of this stone is Pear Mixed Cut. It’s graded Transparent and clarity is good. This 4.24ct Greenish Color natural Sphene Gem is available for ready to ship anywhere in the world. You can also select Certification and shipment method as optional.
Details
Summary No | AK18520 |
Species | Natural Sphene |
Weight | 4.24ct |
Shape/cut | Pear Mixed Cut |
Color | Greenish Color |
Dimension | 13.00×8.97×4.29mm |
Clarity | Good |
Transparency | Transparent |
Origin | Sri Lanka |
Treatment | None |
Sphene 4.24ct
Properties Of Sphene
Chemical Composition: CaTiSiO5
Hardness: 5.0 – 5.5
Specific Gravity (Density): 3.48 – 3.60
Refractive Index: 1.843 – 2.110
About Sphene
Sphene(also known as Titanite ) is a beautiful gem with high dispersion, high refractive index (greater than Diamond), high birefringence and intense red, green and yellow colors. Unfortunately, it also has low hardness and is brittle so not recommended for jewellery. Titanite is typically slightly to moderately included and clean gems are particularly rare and beautiful. Titanite may be mildly radioactive as defined in 49 CFR 173.403 (greater than 70 Bq/gram) due to the presence of the Rare Earth Elements (REE) Cerium (Ce), Lanthanum (La), Neodymium (Nd), Praeseodymium (Pr) and Samarium (Sm). Titanite may also be metamict. This means that the original crystal structure has been broken down and turned amorphous due to radiation damage. An intensely vivid green, chromium (Cr) a rich variety of Titanite exists called Chromian Titanite. The main source of Chromian Titanite is the Saranovskii Mine, Saranovskaya Village, Gornozavodskii area, Permskaya Oblast’, Middle Urals Region, Russia.
Notable occurrences of gemmy crystals of Titanite include Gilgit and Badakhshan Provinces, Afghanistan; Pi~no Solo. From Campo do Boa, Capelinha, Minas Gerais, Brazil; Antsiranana and Tuléar Provinces, Madagascar; Skardu District, Baltistan, Northern Areas, Pakistan; and Subpolar Ural Mountains, Russia.