Achroite Vs Riebeckite
Origin
Afghanistan, Sri Lanka
Not Available
Color
Colorless, Blue
Black, Blue, Yellow, Green
Streak
Not Available
Grey, Greenish, Brown
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
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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
Not Available
Brittle
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.90-3.40
3.28-3.44
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Uneven, Splintery, Brittle
Cleavage
Not Available
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Mohs Hardness
7-7.5
5.0-6.0
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Not Available
Luster
Not Available
Vitreous, Silky
Pleochroism
Not Available
X = blue
Transparency
Transparent, Translucent
Not Available
Refractive Index
1.614-1.666
1.680-1.698
Optic Character
Not Available
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Crystal System
Not Available
monoclinic
Birefringence
0.014-0.040
0.005-0.008
Clarity
Transparent
Not Available
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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Achroite Vs Riebeckite Fracture
Fracture is an important parameter when you compare Achroite and Riebeckite Physical Properties. It is necessary to understand the significance of these properties, before you compare Achroite Vs Riebeckite 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 Achroite is ConchoidalWalter Schumann, Gemstones of the world (2001), Uneven and Uneven. Riebeckite fracture is Brittle, Splintery and Uneven.
Achroite Vs Riebeckite Luster
A primary knowledge about Achroite vs Riebeckite 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. Riebeckite, on other hand, exhibits Silky and Vitreous luster.