Precious Opal Vs Astrophyllite
Origin
Australia
Canada, Russia
Color
Yellow, Green, Blue
Brown, Yellow, Greenish, Brown, Yellow, Greenish, Brown, Brownish, Red, Yellow
Streak
Not Available
Brown, White, Brown, White
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
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Energy
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
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.98-2.25
3.2-3.4
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references
Uneven, Brittle, Metallic
Cleavage
Not Available
Perfect on [001] imperfect on [100]
Chemical Composition
SiO 2 · nH 2OGemdat.org , Management Team (2012)
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Luster
Not Available
Greasy, Pearly
Pleochroism
AbsentWalter Schumann
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Dispersion
None
Not Available
Transparency
Transparent, Translucent
Translucent
Refractive Index
1.370-1.470
1.678-1.758
Optic Character
Not Available
Not Available
Crystal System
Not Available
Triclinic
Birefringence
Not Available
0.050
Clarity
Transparent
Translucent
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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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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Precious Opal Vs Astrophyllite Fracture
Fracture is an important parameter when you compare Precious Opal and Astrophyllite Physical Properties. It is necessary to understand the significance of these properties, before you compare Precious Opal Vs Astrophyllite 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 Precious Opal is Conchoidal, Conchoidal and Gemstones of the world (2001) More from other references. Astrophyllite fracture is Brittle, Metallic and Uneven.
Precious Opal Vs Astrophyllite Luster
A primary knowledge about Precious Opal vs Astrophyllite 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. Astrophyllite, on other hand, exhibits Greasy and Pearly luster.