Ettringite Vs Oligoclase
Origin
Southern and central Africa
Southern and central Africa
Color
Colorless, Yellow, White, Colorless, White
Colorless, Brown, Greenish, 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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Tenacity
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Solubility
Partially soluble in water
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Durability
Not Available
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Specific Gravity
1.77
2.62-2.67
Fracture
Not Available
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
Cleavage
Perfect on {10 1 0}
From the Greek, oligos and kasein, little cleavage.
Mohs Hardness
2-2.5
6-6.5
Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Pleochroism
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Dispersion
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Transparency
Transparent, Translucent
Gemmological Tables (2004)
Refractive Index
1.470-1.491
1.538-1.550
Optic Character
Not Available
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Crystal System
Trigonal
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Birefringence
0.021
0.010
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 Oligoclase Fracture
Fracture is an important parameter when you compare Ettringite and Oligoclase Physical Properties. It is necessary to understand the significance of these properties, before you compare Ettringite Vs Oligoclase 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. Oligoclase fracture is Gems, Gems, Sixth Edition (2006), Sixth Edition (2006) and Uneven.
Ettringite Vs Oligoclase Luster
A primary knowledge about Ettringite vs Oligoclase 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. Oligoclase, on other hand, exhibits Vitreous luster.