Origin
Australia
USA, Brazyl, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Color
Colorless, White, Brownish, Yellow, Brown
Colorless, Yellow, pink, Red
For which Rashi?
Not Available
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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
Not Available
2.90-2.98
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
Cleavage
None
Distinct on {11 2 0}, imperfect on {10 1 1}
Mohs Hardness
7-7.5
7.5-8
Chemical Composition
Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Adamantine
Vitreous
Pleochroism
NilArthur Thomas
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Transparency
Gemmological Tables (2004) More from other references
Gemmological Tables (2004) More from other references
Refractive Index
1.994-2.040
1.650-1.695
Optic Character
Not Available
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Crystal System
Not Available
Trigonal
Birefringence
0.046
0.016
Clarity
Gemmological Tables (2004) More from other references
TransparentUlrich Henn and Claudio C. Milisenda
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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Simpsonite Vs Phenakite Fracture
Fracture is an important parameter when you compare Simpsonite and Phenakite Physical Properties. It is necessary to understand the significance of these properties, before you compare Simpsonite Vs Phenakite 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 Simpsonite is Brittle, Conchoidal, ConchoidalAnthony et al, ConchoidalAnthony et al, Handbook of mineralogy (2001) and Handbook of mineralogy (2001). Phenakite fracture is Brittle, Conchoidal, ConchoidalWalter Schumann and Gemstones of the world (2001).
Simpsonite Vs Phenakite Luster
A primary knowledge about Simpsonite vs Phenakite 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. Simpsonite exhibits Adamantine luster. Phenakite, on other hand, exhibits Vitreous luster.