Jet Vs Prehnite
Origin
Spain
Australia, Southern and central Africa, green, brown, Australia, France, green, brown, Australia, France
Color
Black
Green, Colorless, gray, Yellow, White
Streak
Not Available
Colorless
For which Rashi?
Capricorn
Libra
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
Protection
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.19-1.35
2.80-2.95
Fracture
ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Cleavage
Not Available
Distinct on [001]
Mohs Hardness
2.5-4
6-6.5
Chemical Composition
Not Available
Ca2Al2Si3O12(OH)
Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
Transparency
Gemmological Tables (2004) More from other references
Translucent
Refractive Index
1.640-1.680
1.611-1.673
Optic Character
Not Available
Not Available
Crystal System
Amorphous
Orthorhombic
Birefringence
Not Available
0.021-0.033
Clarity
Gemmological Tables (2004) More from other references
TranslucentHerve Nicolas Lazzarelli
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
Jet Vs Prehnite Fracture
Fracture is an important parameter when you compare Jet and Prehnite Physical Properties. It is necessary to understand the significance of these properties, before you compare Jet Vs Prehnite 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 Jet is ConchoidalWalter Schumann, ConchoidalWalter Schumann and Gemstones of the world (2001) More from other references. Prehnite fracture is Brittle, Gemstones of the world (2001) More from other references, Metallic, Uneven, UnevenWalter Schumann, White and Yellow.
Jet Vs Prehnite Luster
A primary knowledge about Jet vs Prehnite 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. Jet exhibits Waxy luster. Prehnite, on other hand, exhibits Vitreous luster.