Fayalite Vs Astrophyllite
Origin
Southern and central Africa
Canada, Russia
Color
Yellow, Brown, Black, Black
Brown, Yellow, Greenish, Brown, Yellow, Greenish, Brown, Brownish, Red, Yellow
Streak
White
Brown, White, Brown, White
For which Rashi?
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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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Solubility
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Durability
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Specific Gravity
4.392
3.2-3.4
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven, Brittle, Metallic
Cleavage
{010} moderate, {100} imperfect
Perfect on [001] imperfect on [100]
Chemical Composition
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous, Resinous
Greasy, Pearly
Pleochroism
Faint
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Dispersion
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Transparency
TransparentAnthony et al, Handbook of mineralogy (2001)
Translucent
Refractive Index
1.827-1.879
1.678-1.758
Optic Character
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Crystal System
Orthorhombic
Triclinic
Birefringence
0.042-0.051
0.050
Clarity
TransparentAnthony et al
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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Fayalite Vs Astrophyllite Fracture
Fracture is an important parameter when you compare Fayalite and Astrophyllite Physical Properties. It is necessary to understand the significance of these properties, before you compare Fayalite 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 Fayalite is Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal and Brittle. Astrophyllite fracture is Uneven, Brittle and Metallic.
Fayalite Vs Astrophyllite Luster
A primary knowledge about Fayalite 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. Fayalite exhibits Vitreous and Resinous luster. Astrophyllite, on other hand, exhibits Greasy and Pearly luster.
