Fayalite Vs Onyx
Origin
Southern and central Africa
Not Available
Color
Yellow, Brown, Black
White
Streak
White
Not Available
For which Rashi?
Not Available
Capricorn
Planet
Not Available
Saturn
Element of Planets
Not Available
Not Available
Energy
Not Available
Projective
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Not Available
Mars
Not to wear with
Not Available
Not Available
Powers
Not Available
Protection
Planetary
Not Available
Not Available
Talisman
Not Available
Capricorn
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.392
2.55-2.70
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
Not Available
Cleavage
{010} moderate, {100} imperfect
Indiscernible
Mohs Hardness
6.5-7
6.5-7
Chemical Composition
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
SiO2
Luster
Vitreous, Resinous
Vitreous
Pleochroism
Faint
Not Available
Dispersion
Not Available
Not Available
Transparency
TransparentAnthony et al, Handbook of mineralogy (2001)
Translucent, Opaque, Translucent to opaque
Refractive Index
1.827-1.879
1.530-1.543
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Trigonal
Birefringence
0.042-0.051
Not Available
Clarity
TransparentAnthony et al
OpaqueHerve Nicolas Lazzarelli
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
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Fayalite Vs Onyx Fracture
Fracture is an important parameter when you compare Fayalite and Onyx Physical Properties. It is necessary to understand the significance of these properties, before you compare Fayalite Vs Onyx 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) and Brittle.
Fayalite Vs Onyx Luster
A primary knowledge about Fayalite vs Onyx 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. Onyx, on other hand, exhibits Vitreous luster.
