Ettringite Vs Poudretteite
Origin
Southern and central Africa
Canada, Southern and central Africa
Color
Colorless, Yellow, White, Colorless, White
Violet, Colorless, pink
For which Rashi?
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Planet
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Element of Planets
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Energy
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Finger
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Ring Metal
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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
Partially soluble in water
Not Available
Durability
Not Available
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Specific Gravity
1.77
2.51-2.53
Fracture
Not Available
Conchoidal, Splintery
Cleavage
Perfect on {10 1 0}
None
Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
Pleochroism
Not Available
Colorless
Dispersion
Not Available
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Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
Refractive Index
1.470-1.491
1.511-1.532
Optic Character
Not Available
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Crystal System
Trigonal
Hexagonal
Birefringence
0.021
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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Ettringite Vs Poudretteite Fracture
Fracture is an important parameter when you compare Ettringite and Poudretteite Physical Properties. It is necessary to understand the significance of these properties, before you compare Ettringite 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. Poudretteite fracture is Conchoidal and Splintery.
Ettringite Vs Poudretteite Luster
A primary knowledge about Ettringite 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. Ettringite exhibits Vitreous luster. Poudretteite, on other hand, exhibits Vitreous luster.