Sugilite Vs Prehnite
Origin
Canada, Southern and central Africa, Italy, Australia, India
Australia, Southern and central Africa, green, brown, Australia, France, green, brown, Australia, France
Color
Violet, Brownish, Yellow, Reddish, Pale pink
Green, Colorless, gray, Yellow, White
For which Rashi?
Virgo
Libra
Planet
Mercury, Jupiter
Venus
Element of Planets
Water
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
Not Available
Planetary
All
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.69-2.79
2.80-2.95
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Cleavage
Poor on {0001}
Distinct on [001]
Mohs Hardness
5.5-6.5
6-6.5
Chemical Composition
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca2Al2Si3O12(OH)
Pleochroism
Weak
AbsentWalter Schumann
Dispersion
Not Available
None
Transparency
Translucent
Translucent
Refractive Index
1.607-1.612
1.611-1.673
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Orthorhombic
Birefringence
0.003
0.021-0.033
Clarity
Translucent
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
Sugilite Vs Prehnite Fracture
Fracture is an important parameter when you compare Sugilite and Prehnite Physical Properties. It is necessary to understand the significance of these properties, before you compare Sugilite 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 Sugilite is ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009). Prehnite fracture is Brittle, Gemstones of the world (2001) More from other references, Metallic, Uneven, UnevenWalter Schumann, White and Yellow.
Sugilite Vs Prehnite Luster
A primary knowledge about Sugilite 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. Sugilite exhibits Vitreous luster. Prehnite, on other hand, exhibits Vitreous luster.