Alexandrite Vs Prasiolite
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
Canada
Streak
Not Available
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For which Rashi?
Scorpio
Libra, Sagittarius, Taurus
Element of Planets
Earth
Water
Finger
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Ring Metal
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Energy
Projective, Receptive
Receptive
Deities
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Goddess
Not to wear with
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Powers
Love
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Planetary
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Talisman
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Tenacity
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Brittle
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.69-3.81
2.65
Fracture
Not Available
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Chemical Composition
BeAl 2 O 4
SiO 2Ulrich Henn and Claudio C.
Pleochroism
Not Available
Very weak: light green pale greenWalter Schumann
Transparency
Transparent, Transparent to nearly opaque
Transparent, Translucent
Refractive Index
1.739-1.770
1.544-1.553
Optic Character
Biaxial/+
Not Available
Crystal System
Orthorhombic
Trigonal
Birefringence
0.007-0.010
0.009
Clarity
Transparent
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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Alexandrite Vs Prasiolite Fracture
Fracture is an important parameter when you compare Alexandrite and Prasiolite Physical Properties. It is necessary to understand the significance of these properties, before you compare Alexandrite Vs Prasiolite 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. Prasiolite fracture is Conchoidal, ConchoidalWalter Schumann and Gemstones of the world (2001).
Alexandrite Vs Prasiolite Luster
A primary knowledge about Alexandrite vs Prasiolite 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. Prasiolite, on other hand, exhibits Vitreous luster.