Origin
Australia, Southern and central Africa, green, brown, Australia, France, green, brown, Australia, France
Canada, Pakistan
Color
Green, Colorless, gray, Yellow, White
Reddish, Greenish, White, Red, Yellow, Green, Grey, Blue, Brown, Colorless, White, gray, Reddish, orange
For which Rashi?
Libra
Virgo, Capricorn, Virgo, Capricorn, Virgo, Capricorn
Element of Planets
Earth
Earth
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Receptive
Projective, Receptive
Not to wear with
Not Available
Not Available
Powers
Not Available
Protection
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Solubility
Not Available
Dilute acid
Durability
Not Available
Not Available
Specific Gravity
2.80-2.95
2.93-2.96
Fracture
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Distinct on [001]
Distinct on {010}, imperfect {110} and {011}
Mohs Hardness
6-6.5
3.5-4
Chemical Composition
Ca2Al2Si3O12(OH)
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous, Resinous
Pleochroism
AbsentWalter Schumann
StrongArthur Thomas
Dispersion
None
Not Available
Transparency
Translucent
Transparent, Translucent
Refractive Index
1.611-1.673
1.525-1.686
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.021-0.033
0.155
Clarity
TranslucentHerve Nicolas Lazzarelli
Transparent
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 Aragonite Fracture
Fracture is an important parameter when you compare Prehnite and Aragonite Physical Properties. It is necessary to understand the significance of these properties, before you compare Prehnite Vs Aragonite 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. Aragonite fracture is Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Subconchoidal.
Prehnite Vs Aragonite Luster
A primary knowledge about Prehnite vs Aragonite 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. Aragonite, on other hand, exhibits Resinous and Vitreous luster.