Origin
Canada, USA, Brazil, Italy, Mozambique, Zimbabwe, Russia, Burma, Australia
Turkey
Color
Colorless, gray, Yellow, White
Colorless, White, Yellow, White, Greenish, gray, Brown, Colorless, Yellow
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
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Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
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Deities
Not Available
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Not to wear with
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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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Tenacity
Brittle
Very brittle
Solubility
insoluble
insoluble
Durability
Not Available
Not Available
Specific Gravity
2.40
3.30-3.40
Fracture
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Conchoidal, Brittle, Conchoidal
Cleavage
Perfect on {001}, poor on {201} with 38.5° angle between the two
{010} perfect, {110} distinct, {100} in traces
Mohs Hardness
6-6.5
6.5-7
Chemical Composition
LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous, Pearly
Pearly
Pleochroism
AbsentWalter Schumann
Strong
Transparency
Gemmological Tables (2004) More from other references
Transparent
Refractive Index
1.502-1.523
1.702-1.750
Optic Character
Not Available
Not Available
Crystal System
monoclinic
Orthorhombic
Birefringence
0.012-0.016
0.048
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
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 Diaspore Fracture
Fracture is an important parameter when you compare Petalite and Diaspore Physical Properties. It is necessary to understand the significance of these properties, before you compare Petalite Vs Diaspore 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. Diaspore fracture is Brittle, Conchoidal and Conchoidal.
Petalite Vs Diaspore Luster
A primary knowledge about Petalite vs Diaspore 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. Diaspore, on other hand, exhibits Pearly luster.