Gahnite Vs Beryllonite
Color
Blue, Green, Greenish, Black
Colorless, Colorless, White, Yellow
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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Brittle
Solubility
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Durability
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Specific Gravity
4.00-4.62
2.79-2.87
Fracture
Conchoidal, Uneven
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Indistinct parting on [111]
{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces
Mohs Hardness
7.5-8
5.5-6
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous, Adamantine, Pearly
Pleochroism
Not Available
AbsentWalter Schumann
Transparency
Gemmological Tables (2004) More from other references
Gemmological Tables (2004) More from other references
Refractive Index
1.790-1.818
1.552-1.562
Optic Character
Not Available
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Crystal System
cubic
monoclinic
Birefringence
Not Available
0.009
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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Gahnite Vs Beryllonite Fracture
Fracture is an important parameter when you compare Gahnite and Beryllonite Physical Properties. It is necessary to understand the significance of these properties, before you compare Gahnite Vs Beryllonite 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 Gahnite is Conchoidal and Uneven. Beryllonite fracture is Brittle, Conchoidal, Conchoidal, ConchoidalArthur Thomas and Gemstones (2009).
Gahnite Vs Beryllonite Luster
A primary knowledge about Gahnite vs Beryllonite 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. Gahnite exhibits Vitreous luster. Beryllonite, on other hand, exhibits Adamantine, Pearly and Vitreous luster.