Aventurine Vs Alexandrite
Origin
Austria, India, green
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
Streak
Not Available
Not Available
For which Rashi?
Aries
Scorpio
Element of Planets
Air
Earth
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Projective
Projective, Receptive
Deities
Venus
Not Available
Not to wear with
Not Available
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Planetary
Not Available
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Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.64-2.69
3.69-3.81
Fracture
Conchoidal
Not Available
Cleavage
Indiscernible
1,1 ; 3,2.
Chemical Composition
SiO2
BeAl 2 O 4
Pleochroism
AbsentWalter Schumann
Not Available
Dispersion
None
Not Available
Transparency
Translucent, Opaque . May be translucent when backlit on the edges.
Transparent, Transparent to nearly opaque
Refractive Index
1.544-1.553
1.739-1.770
Optic Character
Not Available
Biaxial/+
Crystal System
Trigonal
Orthorhombic
Birefringence
0.007-0.010
0.007-0.010
Clarity
Translucent
Transparent
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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Aventurine Vs Alexandrite Fracture
Fracture is an important parameter when you compare Aventurine and Alexandrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Aventurine 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 Aventurine is Conchoidal.
Aventurine Vs Alexandrite Luster
A primary knowledge about Aventurine 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. Aventurine exhibits Vitreous luster. Alexandrite, on other hand, exhibits Vitreous luster.