Pezzottaite Vs Gahnite
Origin
Afghanistan
Australia
Color
White, Colorless, Blue, Red, Green, Yellow, Violet, pink
Blue, Green, Greenish, Black
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
2.90-3.14
4.00-4.62
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Conchoidal, Uneven
Cleavage
Imperfect; basal
Indistinct parting on [111]
Mohs Hardness
7.5-8
7.5-8
Chemical Composition
(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Pleochroism
Moderate dichroic
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Dispersion
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Transparency
Transparent
Gemmological Tables (2004) More from other references
Refractive Index
1.598-1.620
1.790-1.818
Optic Character
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Crystal System
Hexagonal
cubic
Birefringence
0.008-0.011
Not Available
Clarity
Transparent
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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Pezzottaite Vs Gahnite Fracture
Fracture is an important parameter when you compare Pezzottaite and Gahnite Physical Properties. It is necessary to understand the significance of these properties, before you compare Pezzottaite 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 Pezzottaite is Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Gahnite fracture is Conchoidal and Uneven.
Pezzottaite Vs Gahnite Luster
A primary knowledge about Pezzottaite 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. Pezzottaite exhibits Vitreous luster. Gahnite, on other hand, exhibits Vitreous luster.