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