Origin
Canada, USA, Brazil, Italy, Mozambique, Zimbabwe, Russia, Burma, Australia
Southern and central Africa
Color
Colorless, gray, Yellow, White
Violet, Brownish, Black, pink, Red, Reddish
For which Rashi?
Not Available
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Planet
Not Available
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Element of Planets
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Finger
Not Available
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Ring Metal
Not Available
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Energy
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Deities
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Not to wear with
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Powers
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Planetary
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Talisman
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Tenacity
Brittle
Not Available
Solubility
insoluble
Not Available
Durability
Not Available
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Specific Gravity
2.40
3.2-3.4
Fracture
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
Cleavage
Perfect on {001}, poor on {201} with 38.5° angle between the two
[100] [001] perfect
Mohs Hardness
6-6.5
4-4.5
Chemical Composition
LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous, Pearly
Not Available
Pleochroism
AbsentWalter Schumann
StrongArthur Thomas
Transparency
Gemmological Tables (2004) More from other references
TranslucentWalter Schumann, Gemstones of the world (2001) More from other references
Refractive Index
1.502-1.523
1.85-1.92
Optic Character
Not Available
Not Available
Crystal System
monoclinic
Orthorhombic
Birefringence
0.012-0.016
0.070
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TranslucentWalter Schumann
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Healing
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Qualities Associated
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Petalite Vs Purpurite Fracture
Fracture is an important parameter when you compare Petalite and Purpurite Physical Properties. It is necessary to understand the significance of these properties, before you compare Petalite Vs Purpurite 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. Purpurite fracture is Brittle, Gemstones (2009), Uneven and UnevenArthur Thomas.
Petalite Vs Purpurite Luster
A primary knowledge about Petalite vs Purpurite 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.