Description
Aventurine Quartz Gemstone 20.72ct
Description
This Aventurine Quartz is natural gemstone which is the Green color, its Originates from India and its exact weight is 20.72ct the measurements are 25.04×16.11×5.88mm, the shape and cut of this stone are Oval Cabochon. Its graded Opaque and clarity is good. This 20.72ct Green color natural Aventurine Quartz Gem is available for ready to ship anywhere in the world. You can also select Certification and shipment method as optional.
Details
Summary No | AK19370 |
Species | Aventurine Quartz |
Weight | 20.72ct |
Shape/cut | Oval Cabochon |
Color | Green |
Dimension | 25.04×16.11×5.88mm |
Clarity | Good |
Transparency | Opaque |
Origin | India |
Treatment | None |
Aventurine Quartz Gemstone 20.72ct
Properties Of Aventurine Quartz
Chemical Composition: SiO2
Hardness: 6.5 to 7
Specific Gravity (Density): 2.62 – 2.65
Refractive Index: 1.544 – 1.553
About Aventurine Quartz
Aventurine is a variety of translucent quartz with abundant small plate- or flake-shaped inclusions. Light entering the quartz strikes these inclusions and reflects from them. This produces a sparkly appearance known as “aventurescence.” Aventurine is a gemstone variety of quartz characterized by its translucency and sparkly metallic inclusions. Glittery inclusions are typically composed of muscovite mica, which usually results in medium to dark green aventurine stones with a silvery green or blue sheen. The metallic inclusions give aventurine quartz a unique sparkling iridescent effect, known as ‘aventurescence’. The remarkable optical effect is owed to traces of muscovite mica, and often hematite or goethite. The most common color of aventurine is green, but it may also be orange, brown, yellow, blue, or grey. Chrome-bearing fuchsite (a variety of muscovite mica) is the classic inclusion and gives a silvery green or blue sheen. Oranges and browns are attributed to hematite or goethite. Because aventurine is a rock, its physical properties vary: its specific gravity may lie between 2.64-2.69 and its hardness is somewhat lower than single-crystal quartz at around 6.5. When the inclusions are abundant and in a common orientation, their reflections can be eye-catching. This property, along with desirable colors, are what give aventurine its appeal as a gemstone. Aventurine is usually green but also occurs in orange, yellow, red, pink, brown, white, gray, and blue.