Origin
Brazil, Madagascar, Russia, USA, Mexico, Pakistan, brown, Yellow, Orange, Brazil, Sri Lanka, Pakistan, Russia, brown, Yellow, Orange, Brazil, Sri Lanka, Pakistan, Russia
China, Canada
Color
Yellow, Blue, Green, Red, White, Colorless, Blue, Red, Green, Yellow, pink, Brown
Green, Green, Yellow, Brown, White, gray, Black
Streak
White
Not Available
For which Rashi?
Sagittarius
Not Available
Element of Planets
Not Available
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Energy
Projective
Not Available
Finger
Not Available
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Ring Metal
Not Available
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Not to wear with
Not Available
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Powers
Healing, Love, Money
Not Available
Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.49-3.57
2.90-3.10
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Splintery, Granular, Splintery, Granular, Gemstones (2009)
Cleavage
[001] Perfect
Not Available
Chemical Composition
Al2SiO4(F,OH)2
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous
Vitreous, Greasy
Transparency
Transparent
Translucent
Refractive Index
1.606-1.644
1.600-1.627
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
monoclinic
Birefringence
0.008-0.011
0.027
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
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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Topaz Vs Nephrite Fracture
Fracture is an important parameter when you compare Topaz and Nephrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Topaz Vs Nephrite 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 Topaz is Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009) and Brittle. Nephrite fracture is Splintery, Granular, Splintery, Granular and Gemstones (2009).
Topaz Vs Nephrite Luster
A primary knowledge about Topaz vs Nephrite 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. Topaz exhibits Vitreous luster. Nephrite, on other hand, exhibits Vitreous and Greasy luster.