Astrophyllite Vs Common Opal
Origin
Canada, Russia
Southern and central Africa
Color
Brown, Yellow, Greenish, Brown, Yellow, Greenish, Brown, Brownish, Red, Yellow
White, Colorless, Blue, Red, Green, Yellow, Violet
Streak
Brown, White, Brown, White
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For which Rashi?
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Planet
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Element of Planets
Not Available
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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
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.2-3.4
1.98-2.50
Fracture
Uneven, Brittle, Metallic
Conchoidal, Conchoidal, Gemstones of the world (2001)
Cleavage
Perfect on [001] imperfect on [100]
Not Available
Chemical Composition
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Luster
Greasy, Pearly
Not Available
Pleochroism
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
AbsentWalter Schumann
Dispersion
Not Available
None
Transparency
Translucent
Translucent
Refractive Index
1.678-1.758
1.37-1.52
Optic Character
Not Available
Not Available
Crystal System
Triclinic
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Birefringence
0.050
Not Available
Clarity
Translucent
Translucent
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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Astrophyllite Vs Common Opal Fracture
Fracture is an important parameter when you compare Astrophyllite and Common Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Astrophyllite Vs Common 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 Astrophyllite is Brittle, Metallic and Uneven. Common Opal fracture is Conchoidal, Conchoidal and Gemstones of the world (2001).
Astrophyllite Vs Common Opal Luster
A primary knowledge about Astrophyllite vs Common 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. Astrophyllite exhibits Greasy and Pearly luster.