Origin
Australia, Southern and central Africa, green, brown, Australia, France, green, brown, Australia, France
Southern and central Africa, USA, Australia, Brazil, USA, Australia, Brazil, USA
Color
Green, Colorless, gray, Yellow, White
Green
Streak
Colorless
Not Available
For which Rashi?
Libra
Cancer, Taurus, Cancer, Taurus, Cancer, Taurus
Element of Planets
Earth
Earth
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Receptive
Receptive
Not to wear with
Not Available
Not Available
Powers
Not Available
Protection, Healing
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.80-2.95
2.58-2.64
Fracture
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Gems, Sixth Edition (2006)
Cleavage
Distinct on [001]
None
Mohs Hardness
6-6.5
6.5-7
Chemical Composition
Ca2Al2Si3O12(OH)
SiO2 (with a high level of nickel impurities )
Luster
Vitreous
Vitreous, Vitreous, Waxy
Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
Transparency
Translucent
Translucent, Translucent, Opaque, Translucent to nearly opaque
Refractive Index
1.611-1.673
1.530-1.543
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Trigonal
Birefringence
0.021-0.033
0.004
Clarity
TranslucentHerve Nicolas Lazzarelli
Translucent
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Prehnite Vs Chrysoprase Fracture
Fracture is an important parameter when you compare Prehnite and Chrysoprase Physical Properties. It is necessary to understand the significance of these properties, before you compare Prehnite Vs Chrysoprase fracture. Whenever a gemstone chip breaks, it leaves a characteristic line along its breakage. Such lines are known as fracture and are used to identify the gemstones in their initial stages of production when they are in the form of rough minerals. Fracture is usually described with the terms “fibrous” and “splintery” to denote a fracture that usually leaves elongated and sharp edges. Fracture observed in Prehnite is Brittle, Gemstones of the world (2001) More from other references, Metallic, Uneven, UnevenWalter Schumann, White and Yellow. Chrysoprase fracture is Gems and Sixth Edition (2006).
Prehnite Vs Chrysoprase Luster
A primary knowledge about Prehnite vs Chrysoprase luster is useful in apparent identifications of these gemstones. Luster is the measure of light that gets reflected when incident on a finished cut gemstone. There are two major types of lusters: Silky and Adamantine. Since luster varies between two crystals of even the same gemstone, luster is limited to basic identification criteria. Prehnite exhibits Vitreous luster. Chrysoprase, on other hand, exhibits Vitreous, Vitreous and Waxy luster.