Andradite Vs Poudretteite
Origin
Italy, Russia
Canada, Southern and central Africa
Color
Colorless, Green, Black, Brown, Red, Greenish, Yellow, gray
Violet, Colorless, pink
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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Durability
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Specific Gravity
3.70-4.10
2.51-2.53
Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Splintery
Chemical Composition
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Adamantine, Resinous
Vitreous
Pleochroism
Not Available
Colorless
Transparency
Transparent
Gemmological Tables (2004) More from other references
Refractive Index
1.88-1.94
1.511-1.532
Optic Character
Not Available
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Crystal System
cubic
Hexagonal
Birefringence
0.057
0.021
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
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 Poudretteite Fracture
Fracture is an important parameter when you compare Andradite and Poudretteite Physical Properties. It is necessary to understand the significance of these properties, before you compare Andradite Vs Poudretteite 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. Poudretteite fracture is Conchoidal and Splintery.
Andradite Vs Poudretteite Luster
A primary knowledge about Andradite vs Poudretteite 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. Poudretteite, on other hand, exhibits Vitreous luster.