Origin
Brazil, Madagascar, Russia, USA, Mexico, Pakistan, brown, Yellow, Orange, Brazil, Sri Lanka, Pakistan, Russia, brown, Yellow, Orange, Brazil, Sri Lanka, Pakistan, Russia
Australia
Color
Yellow, Blue, Green, Red, White, Colorless, Blue, Red, Green, Yellow, pink, Brown
Blue, Green, Greenish, Black
For which Rashi?
Sagittarius
Not Available
Element of Planets
Not Available
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Finger
Not Available
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Ring Metal
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Energy
Projective
Not Available
Not to wear with
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Powers
Healing, Love, Money
Not Available
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
3.49-3.57
4.00-4.62
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Conchoidal, Uneven
Cleavage
[001] Perfect
Indistinct parting on [111]
Chemical Composition
Al2SiO4(F,OH)2
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Pleochroism
Weak
Not Available
Transparency
Transparent
Gemmological Tables (2004) More from other references
Refractive Index
1.606-1.644
1.790-1.818
Optic Character
Not Available
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Crystal System
Orthorhombic
cubic
Birefringence
0.008-0.011
Not Available
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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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Topaz Vs Gahnite Fracture
Fracture is an important parameter when you compare Topaz and Gahnite Physical Properties. It is necessary to understand the significance of these properties, before you compare Topaz Vs Gahnite 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 Brittle, ConchoidalArthur Thomas, Gemstones (2009), Subconchoidal and Uneven. Gahnite fracture is Conchoidal and Uneven.
Topaz Vs Gahnite Luster
A primary knowledge about Topaz vs Gahnite 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. Gahnite, on other hand, exhibits Vitreous luster.