Origin
Canada, USA, Brazil, Italy, Mozambique, Zimbabwe, Russia, Burma, Australia
Switzerland, Australia, Brazil
Color
Colorless, gray, Yellow, White
Yellow, Colorless, White, Brownish, Reddish
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
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Energy
Not Available
Not Available
Finger
Not Available
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Ring Metal
Not Available
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Deities
Not Available
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Not to wear with
Not Available
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Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
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Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.40
5.9-6.3
Fracture
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Conchoidal, Gemstones of the world (2001) More from other references, Uneven
Cleavage
Perfect on {001}, poor on {201} with 38.5° angle between the two
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Mohs Hardness
6-6.5
4.5-5
Chemical Composition
LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Pearly
Vitreous, Adamantine
Pleochroism
AbsentWalter Schumann
Definite dichoric in yellow (yellow to orange-brown)
Transparency
Gemmological Tables (2004) More from other references
Translucent, Transparent
Refractive Index
1.502-1.523
1.918-1.936
Optic Character
Not Available
Not Available
Crystal System
monoclinic
tetragonal
Birefringence
0.012-0.016
0.016
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
Neurological
Not Available
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Cardiovascular
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Respiratory
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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Petalite Vs Scheelite Fracture
Fracture is an important parameter when you compare Petalite and Scheelite Physical Properties. It is necessary to understand the significance of these properties, before you compare Petalite Vs Scheelite 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 Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle and Conchoidal. Scheelite fracture is Conchoidal, Gemstones of the world (2001) More from other references and Uneven.
Petalite Vs Scheelite Luster
A primary knowledge about Petalite vs Scheelite 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 Vitreous and Pearly luster. Scheelite, on other hand, exhibits Vitreous and Adamantine luster.
