Fayalite Vs Friedelite
Origin
Southern and central Africa
USA
Color
Yellow, Brown, Black, Black
Red, Brown, Brown, Red, Yellow, pink
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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Solubility
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Durability
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Specific Gravity
4.392
3.06-3.19
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven
Cleavage
{010} moderate, {100} imperfect
{010} Perfect
Chemical Composition
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Luster
Vitreous, Resinous
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Pleochroism
Faint
NilArthur Thomas
Dispersion
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Transparency
TransparentAnthony et al, Handbook of mineralogy (2001)
Translucent
Refractive Index
1.827-1.879
1.627-1.663
Optic Character
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Crystal System
Orthorhombic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
Birefringence
0.042-0.051
0.032-0.035
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 Friedelite Fracture
Fracture is an important parameter when you compare Fayalite and Friedelite Physical Properties. It is necessary to understand the significance of these properties, before you compare Fayalite Vs Friedelite 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). Friedelite fracture is Brittle, Gemstones (2009) Tough, Gemstones (2009) Tough, Uneven, UnevenArthur Thomas and UnevenArthur Thomas.
Fayalite Vs Friedelite Luster
A primary knowledge about Fayalite vs Friedelite 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.