Alexandrite Vs Norbergite
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
USA
Color
Green
Yellow, White, Brown, Red
Streak
Not Available
White
For which Rashi?
Scorpio
Not Available
Planet
Venus
Not Available
Element of Planets
Earth
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Projective, Receptive
Not Available
Deities
Not Available
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Not to wear with
Not Available
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Powers
Love
Not Available
Planetary
Not Available
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Talisman
Not Available
Not Available
Tenacity
Not Available
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Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.69-3.81
3.177
Fracture
Not Available
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
1,1 ; 3,2.
{???} Distinct
Chemical Composition
BeAl 2 O 4
Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
Pleochroism
Not Available
Pale yellow very pale yellow colorlessAnthony et al
Dispersion
Not Available
Not Available
Transparency
Transparent, Transparent to nearly opaque
Transparent
Refractive Index
1.739-1.770
1.563-1.593
Optic Character
Biaxial/+
Not Available
Crystal System
Orthorhombic
Not Available
Birefringence
0.007-0.010
Not Available
Clarity
Transparent
Transparent
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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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 Norbergite Fracture
Fracture is an important parameter when you compare Alexandrite and Norbergite Physical Properties. It is necessary to understand the significance of these properties, before you compare Alexandrite Vs Norbergite 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. Norbergite fracture is Brittle, Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Uneven and Uneven.
Alexandrite Vs Norbergite Luster
A primary knowledge about Alexandrite vs Norbergite 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. Norbergite, on other hand, exhibits Vitreous luster.