Omphacite Vs Gahnite
Origin
Southern and central Africa
Australia
Color
Green
Blue, Green, Greenish, Black
Streak
Greenish, White
Grey, gray
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
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Durability
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Specific Gravity
3.16-3.43
4.00-4.62
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Conchoidal, Uneven
Cleavage
{110} Good, {110} Good
Indistinct parting on [111]
Chemical Composition
(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Pleochroism
Weak: colorless -- very pale green -- very pale green
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Dispersion
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Transparency
TranslucentAnthony et al, Handbook of mineralogy (2001)
Gemmological Tables (2004) More from other references
Refractive Index
1.662-1.723
1.790-1.818
Optic Character
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Crystal System
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cubic
Birefringence
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Clarity
TranslucentAnthony et al
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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Omphacite Vs Gahnite Fracture
Fracture is an important parameter when you compare Omphacite and Gahnite Physical Properties. It is necessary to understand the significance of these properties, before you compare Omphacite 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 Omphacite is Brittle, Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Uneven and Uneven. Gahnite fracture is Conchoidal and Uneven.
Omphacite Vs Gahnite Luster
A primary knowledge about Omphacite 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. Omphacite exhibits Vitreous luster. Gahnite, on other hand, exhibits Vitreous luster.