Thulite Vs Gahnite
Origin
Australia
Australia
Color
Red
Blue, Green, Greenish, Black
Streak
White, Colorless
Grey, gray
For which Rashi?
Not Available
Not Available
Planet
Not Available
Not Available
Element of Planets
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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Energy
Not Available
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Deities
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Not to wear with
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Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.1
4.00-4.62
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Uneven
Cleavage
Perfect {010} imperfect {100}
Indistinct parting on [111]
Chemical Composition
Ca2Al3(SiO4)3(OH)
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Pleochroism
Present
Not Available
Dispersion
Not Available
Not Available
Transparency
Opaque, Translucent, Opaque . May be translucent in thin backlit sections.
Gemmological Tables (2004) More from other references
Refractive Index
1.695
1.790-1.818
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
cubic
Birefringence
0.006-0.018
Not Available
Clarity
OpaqueHerve Nicolas Lazzarelli
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Not Available
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
Not Available
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Psychology
Not Available
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Healing
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Qualities Associated
Not Available
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Thulite Vs Gahnite Fracture
Fracture is an important parameter when you compare Thulite and Gahnite Physical Properties. It is necessary to understand the significance of these properties, before you compare Thulite 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 Thulite is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Gahnite fracture is Conchoidal and Uneven.
Thulite Vs Gahnite Luster
A primary knowledge about Thulite 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. Thulite exhibits Vitreous luster. Gahnite, on other hand, exhibits Vitreous luster.