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