Brazilianite Vs Alexandrite
Origin
Brazil
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
Green, Colorless, Greenish, Yellow, Green
Green
Streak
White
Not Available
For which Rashi?
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Scorpio
Planet
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Venus
Element of Planets
Not Available
Earth
Finger
Not Available
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Ring Metal
Not Available
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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
Not Available
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.98-2.99
3.69-3.81
Fracture
Conchoidal, Gems
Not Available
Cleavage
(010) Distinct to good
1,1 ; 3,2.
Chemical Composition
NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
BeAl 2 O 4
Pleochroism
Very weakWalter Schumann
Not Available
Transparency
Gemmological Tables (2004) More from other references
Transparent, Transparent to nearly opaque
Refractive Index
1.602-1.625
1.739-1.770
Optic Character
Not Available
Biaxial/+
Crystal System
monoclinic
Orthorhombic
Birefringence
0.019-0.021
0.007-0.010
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Neurological
Not Available
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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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Brazilianite Vs Alexandrite Fracture
Fracture is an important parameter when you compare Brazilianite and Alexandrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Brazilianite 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 Brazilianite is Conchoidal and Gems.
Brazilianite Vs Alexandrite Luster
A primary knowledge about Brazilianite 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. Brazilianite exhibits Vitreous luster. Alexandrite, on other hand, exhibits Vitreous luster.