Origin
Canada, Russia
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
Color
Brown, Yellow, Greenish, Brown, Yellow, Greenish, Brown, Brownish, Red, Yellow
Blue, Violet, Greenish, Brown, Colorless, Colorless, Blue, Violet, Yellow, gray
Streak
Brown, White, Brown, White
White
For which Rashi?
Not Available
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Planet
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Element of Planets
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Energy
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Finger
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Ring Metal
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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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Brittle
Solubility
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Durability
Not Available
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Specific Gravity
3.2-3.4
2.57-2.66
Fracture
Uneven, Brittle, Metallic
Subconchoidal, Conchoidal, Brittle
Cleavage
Perfect on [001] imperfect on [100]
Fair on {100}, poor on {001} and {010}
Chemical Composition
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Mg2Al4Si5O18
Luster
Greasy, Pearly
Greasy, Vitreous
Pleochroism
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
X = pale yellow
Dispersion
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Transparency
Translucent
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Refractive Index
1.678-1.758
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Optic Character
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Crystal System
Triclinic
Orthorhombic
Birefringence
0.050
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Clarity
Translucent
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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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Astrophyllite Vs Cordierite Fracture
Fracture is an important parameter when you compare Astrophyllite and Cordierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Astrophyllite Vs Cordierite 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 Uneven, Brittle and Metallic. Cordierite fracture is Subconchoidal, Conchoidal and Brittle.
Astrophyllite Vs Cordierite Luster
A primary knowledge about Astrophyllite vs Cordierite 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. Cordierite, on other hand, exhibits Greasy and Vitreous luster.
