Pearl Vs Alexandrite
Origin
Australia
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
Streak
White
Not Available
For which Rashi?
Cancer, Gemini
Scorpio
Element of Planets
Water
Earth
Energy
Receptive
Projective, Receptive
Finger
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Ring Metal
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Deities
Venus
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Not to wear with
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Powers
Protection, Love, Money
Love
Planetary
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Talisman
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Tenacity
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Solubility
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Durability
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Specific Gravity
2.60-2.85
3.69-3.81
Fracture
Gemstones of the world (2001), UnevenWalter Schumann
Not Available
Mohs Hardness
2.5-4.5
8.5
Chemical Composition
Not Available
BeAl 2 O 4
Pleochroism
AbsentWalter Schumann
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Dispersion
None
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Transparency
Translucent, Opaque
Transparent, Transparent to nearly opaque
Refractive Index
1.52-1.66
1.739-1.770
Optic Character
Not Available
Biaxial/+
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.156
0.007-0.010
Clarity
Translucent
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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Pearl Vs Alexandrite Fracture
Fracture is an important parameter when you compare Pearl and Alexandrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Pearl 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 Pearl is Gemstones of the world (2001) and UnevenWalter Schumann.
Pearl Vs Alexandrite Luster
A primary knowledge about Pearl 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. Pearl exhibits Pearly luster. Alexandrite, on other hand, exhibits Vitreous luster.