Mellite Vs Sard
Origin
Southern and central Africa
Southern and central Africa
Color
Brown, Brownish, White, Colorless, Yellow
White, Colorless, Blue, Red, Green, Yellow, Violet
Streak
White
Not Available
For which Rashi?
Not Available
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Planet
Not Available
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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
1.58-1.60
2.58-2.63
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
{011} Imperfect
Not Available
Chemical Composition
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
SiO 2Ulrich Henn and Claudio C.
Pleochroism
Weak: yellowish brown yellowAnthony et al
AbsentWalter Schumann
Dispersion
Not Available
None
Transparency
Gemmological Tables (2004) More from other references
Translucent
Refractive Index
1.509-1.541
1.535-1.539
Optic Character
Not Available
Not Available
Crystal System
Not Available
Not Available
Birefringence
0.030
0.008-0.010
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
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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Mellite Vs Sard Fracture
Fracture is an important parameter when you compare Mellite and Sard Physical Properties. It is necessary to understand the significance of these properties, before you compare Mellite Vs Sard 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 Mellite is Brittle, Conchoidal, ConchoidalAnthony et al, ConchoidalAnthony et al, Handbook of mineralogy (2001) and Handbook of mineralogy (2001). Sard fracture is ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009).
Mellite Vs Sard Luster
A primary knowledge about Mellite vs Sard 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. Mellite exhibits Vitreous luster. Sard, on other hand, exhibits Waxy luster.