Petalite Vs Jelly Opal
Origin
Canada, USA, Brazil, Italy, Mozambique, Zimbabwe, Russia, Burma, Australia
Not Available
Color
Colorless, gray, Yellow, White
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Streak
Colorless
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For which Rashi?
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Planet
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Element of Planets
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Finger
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Ring Metal
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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
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Solubility
insoluble
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Durability
Not Available
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Specific Gravity
2.40
1.98-2.50
Fracture
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Conchoidal
Cleavage
Perfect on {001}, poor on {201} with 38.5° angle between the two
Not Available
Mohs Hardness
6-6.5
5.5-6.5
Chemical Composition
LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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Luster
Vitreous, Pearly
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Pleochroism
AbsentWalter Schumann
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Transparency
Gemmological Tables (2004) More from other references
Not Available
Refractive Index
1.502-1.523
1.37-1.52
Optic Character
Not Available
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Crystal System
monoclinic
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Birefringence
0.012-0.016
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Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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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 Jelly Opal Fracture
Fracture is an important parameter when you compare Petalite and Jelly Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Petalite Vs Jelly Opal 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. Jelly Opal fracture is Conchoidal.
Petalite Vs Jelly Opal Luster
A primary knowledge about Petalite vs Jelly Opal 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.