Origin
Southern and central Africa
Canada, Russia, Kenya, Russia, Brazil, Russia, Brazil, Russia, Brazil, Russia, Brazil, Russia, Brazil, Russia, Brazil, Russia, Norway, Brazil
Color
Yellow, Brown, Black, Black
Green, Greenish, Black, Green, Greenish, Black, Green, Greenish, Black, Reddish, Brown, Black, Green, Greenish, Black, Reddish, Brown, Black, Green, Greenish, Black, Reddish, Brown, Black
Streak
White
Yellow, Yellowish-grey, gray
For which Rashi?
Not Available
Pisces
Planet
Not Available
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Element of Planets
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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Energy
Not Available
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Deities
Not Available
Not Noted
Not to wear with
Not Available
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Powers
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Healing
Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
Brittle
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
4.392
3.50-3.60
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven, Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
Cleavage
{010} moderate, {100} imperfect
Good on {110}, (110) ^ (1 1 0) ≈87°; parting on {100}
Chemical Composition
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
(Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.
Luster
Vitreous, Resinous
Vitreous, Resinous
Pleochroism
Faint
X = emerald green
Dispersion
Not Available
Not Available
Transparency
TransparentAnthony et al, Handbook of mineralogy (2001)
Gemmological Tables (2004) More from other references
Refractive Index
1.827-1.879
1.720-1.778
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
monoclinic
Birefringence
0.042-0.051
0.037-0.061
Clarity
TransparentAnthony et al
Gemmological Tables (2004) More from other references
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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Fayalite Vs Aegirine Fracture
Fracture is an important parameter when you compare Fayalite and Aegirine Physical Properties. It is necessary to understand the significance of these properties, before you compare Fayalite Vs Aegirine 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 Brittle, Conchoidal, Conchoidal, ConchoidalAnthony et al and Handbook of mineralogy (2001). Aegirine fracture is Brittle, Brittle, Brittle, Metallic, Metallic, Metallic and Uneven.
Fayalite Vs Aegirine Luster
A primary knowledge about Fayalite vs Aegirine 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 Resinous and Vitreous luster. Aegirine, on other hand, exhibits Resinous and Vitreous luster.