Description
Unakite Gemstone 12.86ct
Description
This Unakite is natural gemstone which is the Multicolor, it’s Originates from the USA and its exact weight is 12.86ct the measurements are 14.80×14.05×5.63mm, the shape and cut of this stone are Square Cabochon. It’s graded Opaque and clarity is good. This 12.86ct Multicolor natural Unakite Gem is available for ready to ship anywhere in the world. You can also select Certification and shipment method as optional.
Details
Summary No | AK03279 |
Species | Natural Unakite |
Weight | 12.86ct |
Shape/cut | Square Cabochon |
Colour | Multicolor |
Dimension | 14.80×14.05×5.63mm |
Clarity | Good |
Transparency | Opaque |
Origin | USA |
Treatment | None |
Unakite Gemstone 12.86ct
Properties of Unakite Gemstone
Chemical Composition: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Hardness: 6 to 7
Specific Gravity (Density): 2.85 to 3.20
Refractive Index: 1.525 (+/-) to 1.760 (+/-)
About Unakite Gemstone
Unakite is an altered Granite consisting primarily of pink to orange Orthoclase Feldspar, clear Quartz and green Epidote. It is named for the Unakas Mountains of North Carolina, the USA where it was first discovered. It has also been called “Pompton Granite” for its occurrence at the Pompton Junction Feldspar deposit, Pompton Lakes, Passaic County, New Jersey, USA. Unakite exists in various shades of green and pink or orange and is mottled in appearance. Good quality Unakite will take a good polish and is often used in jewellery and other lapidary work such as cabochons, spheres and carvings.
In addition to the occurrence in North Carolina, Unakite can be found as pebbles on the shores of Lake Superior and in Virginia river valleys having been washed down from the Blue Ridge Mountains. Unakite is also reported from South Africa, Brazil, Russia and China