Andradite Vs Corundum
Origin
Italy, Russia
Southern and central Africa
Color
Colorless, Green, Black, Brown, Red, Greenish, Yellow, gray
Violet, Blue, Red, Yellow, Brown, gray
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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Solubility
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insoluble
Durability
Not Available
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Specific Gravity
3.70-4.10
3.90-4.05
Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, Gems, Difficult, Fibrous
Cleavage
none
None – parting in 3 directions
Chemical Composition
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Al 2O 3Arthur Thomas , Gemstones (2009)
Luster
Adamantine, Resinous
Adamantine, Vitreous
Pleochroism
Not Available
None
Transparency
Transparent
Transparent, Translucent
Refractive Index
1.88-1.94
1.758-1.780
Optic Character
Not Available
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Crystal System
cubic
Trigonal
Birefringence
0.057
0.007-0.010
Clarity
Transparent
Gemmological Tables (2004) More from other references
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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Andradite Vs Corundum Fracture
Fracture is an important parameter when you compare Andradite and Corundum Physical Properties. It is necessary to understand the significance of these properties, before you compare Andradite Vs Corundum 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 Andradite is Brittle, Conchoidal, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Corundum fracture is Difficult, Fibrous, Gems, Uneven and Uneven.
Andradite Vs Corundum Luster
A primary knowledge about Andradite vs Corundum 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. Andradite exhibits Adamantine and Resinous luster. Corundum, on other hand, exhibits Adamantine and Vitreous luster.