Vesuvianite Vs Alexandrite
Origin
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Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma, India, Color: color change, from bluish green (daylight) to purple, red or brown (incandescent light), Hardness: 8, Refractive index: 1.74 1.77, Density: 3.68 3.80, Chemical composition: BeAl2O4, Crystal structure: orthorhombic, Origins: Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma
Color
Brown, Blue, Green, Yellow, White
Green
Streak
White
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For which Rashi?
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Scorpio
Planet
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Venus
Element of Planets
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Earth
Finger
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Ring Metal
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Energy
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Projective, Receptive
Deities
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Not to wear with
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Powers
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Love
Planetary
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Talisman
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Tenacity
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Solubility
Vesuvianite is virtually insolouble in acids
Not Available
Durability
Not Available
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Specific Gravity
3.32-3.43
3.69-3.81
Fracture
Conchoidal, Brittle
Not Available
Cleavage
Poor on {110} and {100} very poor on {001}
1,1 ; 3,2.
Chemical Composition
Not Available
BeAl 2 O 4
Luster
Vitreous, Resinous
Vitreous
Pleochroism
slight in colored varieties
Not Available
Dispersion
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Transparency
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Transparent, Transparent to nearly opaque
Refractive Index
1.703-1.752
1.739-1.770
Optic Character
Not Available
Biaxial/+
Crystal System
tetragonal
Orthorhombic
Birefringence
0.004-0.006
0.007-0.010
Clarity
Not Available
Transparent
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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Vesuvianite Vs Alexandrite Fracture
Fracture is an important parameter when you compare Vesuvianite and Alexandrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Vesuvianite Vs Alexandrite 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 Vesuvianite is Brittle and Conchoidal.
Vesuvianite Vs Alexandrite Luster
A primary knowledge about Vesuvianite vs Alexandrite 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. Vesuvianite exhibits Resinous and Vitreous luster. Alexandrite, on other hand, exhibits Vitreous luster.