Prehnite Vs Lapis lazuli
Origin
Australia, Southern and central Africa, green, brown, Australia, France, green, brown, Australia, France
Afghanistan
Color
Green, Colorless, gray, Yellow, White
Violet, Blue, White
For which Rashi?
Libra
Sagittarius
Element of Planets
Earth
Water
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, Courage
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
2.50-3.00
Fracture
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
Distinct on [001]
3,6
Chemical Composition
Ca2Al2Si3O12(OH)
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
Luster
Vitreous
Vitreous, Greasy
Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
Transparency
Translucent
Opaque
Refractive Index
1.611-1.673
1.500-1.670
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Trigonal
Birefringence
0.021-0.033
Not Available
Clarity
TranslucentHerve Nicolas Lazzarelli
Gemstones of the world (2001)
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 Lapis lazuli Fracture
Fracture is an important parameter when you compare Prehnite and Lapis lazuli Physical Properties. It is necessary to understand the significance of these properties, before you compare Prehnite Vs Lapis lazuli 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. Lapis lazuli fracture is ConchoidalWalter Schumann, Gemstones of the world (2001) and Uneven-Conchoidal.
Prehnite Vs Lapis lazuli Luster
A primary knowledge about Prehnite vs Lapis lazuli 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. Lapis lazuli, on other hand, exhibits Greasy and Vitreous luster.