Gahnite Vs Boracite
Origin
Australia
Boracite is found in evaporite deposits, Southern and central Africa, anhydrite and/or halite. Arthur Thomas
Color
Blue, Green, Greenish, Black
Colorless, White, Yellow, Blue, Green, Colorless, gray, Yellow, White
For which Rashi?
Not Available
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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
Not Available
Soluble
Durability
Not Available
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Specific Gravity
4.00-4.62
2.95-2.96
Fracture
Conchoidal, Uneven
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Indistinct parting on [111]
None
Mohs Hardness
7.5-8
7-7.5
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Vitreous, Adamantine
Pleochroism
Not Available
None
Dispersion
Not Available
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Transparency
Gemmological Tables (2004) More from other references
Transparent
Refractive Index
1.790-1.818
1.658-1.673
Optic Character
Not Available
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Crystal System
cubic
Orthorhombic
Birefringence
Not Available
0.010-0.011
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
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 Boracite Fracture
Fracture is an important parameter when you compare Gahnite and Boracite Physical Properties. It is necessary to understand the significance of these properties, before you compare Gahnite Vs Boracite 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. Boracite fracture is Brittle, Conchoidal, Conchoidal, ConchoidalArthur Thomas and Gemstones (2009).
Gahnite Vs Boracite Luster
A primary knowledge about Gahnite vs Boracite 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. Boracite, on other hand, exhibits Adamantine and Vitreous luster.