Prehnite Vs Gahnite
Origin
Australia, Southern and central Africa, green, brown, Australia, France, green, brown, Australia, France
Australia
Color
Green, Colorless, gray, Yellow, White
Blue, Green, Greenish, Black
Streak
Colorless
Grey, gray
For which Rashi?
Libra
Not Available
Planet
Venus
Not Available
Element of Planets
Earth
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Receptive
Not Available
Deities
Freya
Not Available
Not to wear with
Not Available
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Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
Not Available
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.80-2.95
4.00-4.62
Fracture
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Conchoidal, Uneven
Cleavage
Distinct on [001]
Indistinct parting on [111]
Mohs Hardness
6-6.5
7.5-8
Chemical Composition
Ca2Al2Si3O12(OH)
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Pleochroism
AbsentWalter Schumann
Not Available
Dispersion
None
Not Available
Transparency
Translucent
Gemmological Tables (2004) More from other references
Refractive Index
1.611-1.673
1.790-1.818
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
cubic
Birefringence
0.021-0.033
Not Available
Clarity
TranslucentHerve Nicolas Lazzarelli
TransparentUlrich Henn and Claudio C. Milisenda
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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Prehnite Vs Gahnite Fracture
Fracture is an important parameter when you compare Prehnite and Gahnite Physical Properties. It is necessary to understand the significance of these properties, before you compare Prehnite 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 Prehnite is Brittle, Gemstones of the world (2001) More from other references, Metallic, Uneven, UnevenWalter Schumann, White and Yellow. Gahnite fracture is Conchoidal and Uneven.
Prehnite Vs Gahnite Luster
A primary knowledge about Prehnite 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. Prehnite exhibits Vitreous luster. Gahnite, on other hand, exhibits Vitreous luster.