Origin
USA, Brazyl, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Sri Lanka, India, Brazil
Color
Colorless, Yellow, pink, Red
Green, Brown, Brown, Colorless, Green, gray, Yellow
Streak
White
Brownish, White, Brownish, White
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
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
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Not to wear with
Not Available
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Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
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Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-2.98
3.55-3.73
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Distinct on {11 2 0}, imperfect on {10 1 1}
none
Mohs Hardness
7.5-8
7-7.5
Chemical Composition
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Luster
Vitreous
Greasy, Vitreous
Pleochroism
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
None
Transparency
Gemmological Tables (2004) More from other references
Gemmological Tables (2004) More from other references
Refractive Index
1.650-1.695
1.730-1.760
Optic Character
Not Available
Not Available
Crystal System
Trigonal
cubic
Birefringence
0.016
0.020
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda
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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Phenakite Vs Grossular Fracture
Fracture is an important parameter when you compare Phenakite and Grossular Physical Properties. It is necessary to understand the significance of these properties, before you compare Phenakite Vs Grossular 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). Grossular fracture is Brittle, Conchoidal, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven.
Phenakite Vs Grossular Luster
A primary knowledge about Phenakite vs Grossular 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. Grossular, on other hand, exhibits Greasy and Vitreous luster.