Willemite Vs Tortoiseshell
Origin
Canada
Southern and central Africa
Color
Yellow, Brown, Red, White, Green, Reddish, Black
Brown, Red, Green, Blue, Violet
Streak
White
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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
Not Available
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Durability
Not Available
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Specific Gravity
3.89-4.18
1.25-1.35
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven
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Cleavage
{0001}, {11 2 0} imperfect
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Mohs Hardness
5.5
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Chemical Composition
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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Luster
Vitreous, Resinous
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Pleochroism
NilArthur Thomas
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Dispersion
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Transparency
Transparent, Translucent
Gemmological Tables (2004)
Refractive Index
1.687-1.723
1.540-1.560
Optic Character
Not Available
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Crystal System
Trigonal
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Birefringence
0.028-0.030
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Clarity
Transparent
OpaqueUlrich 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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Willemite Vs Tortoiseshell Fracture
Fracture is an important parameter when you compare Willemite and Tortoiseshell Physical Properties. It is necessary to understand the significance of these properties, before you compare Willemite Vs Tortoiseshell 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 Willemite is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven.
Willemite Vs Tortoiseshell Luster
A primary knowledge about Willemite vs Tortoiseshell 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. Willemite exhibits Resinous and Vitreous luster.