Origin
Canada, USA, Brazil, Italy, Mozambique, Zimbabwe, Russia, Burma, Australia
Canada, Southern and central Africa, Italy, Australia, India
Color
Colorless, gray, Yellow, White
Violet, Brownish, Yellow, Reddish, Pale pink
For which Rashi?
Not Available
Virgo
Planet
Not Available
Mercury, Jupiter
Element of Planets
Not Available
Water
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Receptive
Deities
Not Available
The All
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
Planetary
Not Available
All
Talisman
Not Available
Not Available
Tenacity
Brittle
Not Available
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.40
2.69-2.79
Fracture
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {001}, poor on {201} with 38.5° angle between the two
Poor on {0001}
Mohs Hardness
6-6.5
5.5-6.5
Chemical Composition
LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Pearly
Vitreous
Pleochroism
AbsentWalter Schumann
Weak
Transparency
Gemmological Tables (2004) More from other references
Translucent
Refractive Index
1.502-1.523
1.607-1.612
Optic Character
Not Available
Not Available
Crystal System
monoclinic
Hexagonal
Birefringence
0.012-0.016
0.003
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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
Petalite Vs Sugilite Fracture
Fracture is an important parameter when you compare Petalite and Sugilite Physical Properties. It is necessary to understand the significance of these properties, before you compare Petalite Vs Sugilite 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 Petalite is Brittle, Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references and Subconchoidal. Sugilite fracture is ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009).
Petalite Vs Sugilite Luster
A primary knowledge about Petalite vs Sugilite 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. Petalite exhibits Pearly and Vitreous luster. Sugilite, on other hand, exhibits Vitreous luster.