Origin
USA, Brazyl, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Southern and central Africa
Color
Colorless, Yellow, pink, Red
Yellow, Brown, Black, Black
For which Rashi?
Not Available
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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
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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
Brittle
Not Available
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.90-2.98
4.392
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
Distinct on {11 2 0}, imperfect on {10 1 1}
{010} moderate, {100} imperfect
Mohs Hardness
7.5-8
6.5-7
Chemical Composition
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous, Resinous
Pleochroism
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Faint
Transparency
Gemmological Tables (2004) More from other references
TransparentAnthony et al, Handbook of mineralogy (2001)
Refractive Index
1.650-1.695
1.827-1.879
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Orthorhombic
Birefringence
0.016
0.042-0.051
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentAnthony et al
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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Phenakite Vs Fayalite Fracture
Fracture is an important parameter when you compare Phenakite and Fayalite Physical Properties. It is necessary to understand the significance of these properties, before you compare Phenakite Vs Fayalite 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 Phenakite is Brittle, Conchoidal, ConchoidalWalter Schumann and Gemstones of the world (2001). Fayalite fracture is Brittle, Conchoidal, Conchoidal, ConchoidalAnthony et al and Handbook of mineralogy (2001).
Phenakite Vs Fayalite Luster
A primary knowledge about Phenakite vs Fayalite 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. Phenakite exhibits Vitreous luster. Fayalite, on other hand, exhibits Resinous and Vitreous luster.