Fayalite Vs Riebeckite
Origin
Southern and central Africa
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Color
Yellow, Brown, Black, Black
Black, Blue, Yellow, Green
Streak
White
Grey, Greenish, Brown
For which Rashi?
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Planet
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Element of Planets
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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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Brittle
Solubility
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Durability
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Specific Gravity
4.392
3.28-3.44
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven, Splintery, Brittle
Cleavage
{010} moderate, {100} imperfect
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Mohs Hardness
6.5-7
5.0-6.0
Chemical Composition
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Not Available
Luster
Vitreous, Resinous
Vitreous, Silky
Pleochroism
Faint
X = blue
Dispersion
Not Available
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Transparency
TransparentAnthony et al, Handbook of mineralogy (2001)
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Refractive Index
1.827-1.879
1.680-1.698
Optic Character
Not Available
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Crystal System
Orthorhombic
monoclinic
Birefringence
0.042-0.051
0.005-0.008
Clarity
TransparentAnthony et al
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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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Fayalite Vs Riebeckite Fracture
Fracture is an important parameter when you compare Fayalite and Riebeckite Physical Properties. It is necessary to understand the significance of these properties, before you compare Fayalite Vs Riebeckite 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). Riebeckite fracture is Brittle, Splintery and Uneven.
Fayalite Vs Riebeckite Luster
A primary knowledge about Fayalite vs Riebeckite 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. Riebeckite, on other hand, exhibits Silky and Vitreous luster.