Cancrinite Vs Alexandrite
Origin
Canada
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
Colorless, White, Blue, Colorless, gray, Green, Yellow, White
Green
Streak
White
Not Available
For which Rashi?
Not Available
Scorpio
Planet
Not Available
Venus
Element of Planets
Not Available
Earth
Finger
Not Available
Not Available
Ring Metal
Not Available
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Energy
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Projective, Receptive
Deities
Not Available
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Not to wear with
Not Available
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Powers
Not Available
Love
Planetary
Not Available
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Talisman
Not Available
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Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.42-2.52
3.69-3.81
Fracture
Irregular/uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Not Available
Cleavage
Perfect on {10 1 0}, poor on {0001}
1,1 ; 3,2.
Chemical Composition
Na 2Ca 2Al 6Si 6O 24(CO 3) 2Walter Schumann , Gemstones of the world (2001) More from other references
BeAl 2 O 4
Luster
Vitreous, Greasy, Pearly
Vitreous
Pleochroism
Not Available
Not Available
Dispersion
Not Available
Not Available
Transparency
Transparent
Transparent, Transparent to nearly opaque
Refractive Index
1.491-1.524
1.739-1.770
Optic Character
Not Available
Biaxial/+
Crystal System
Hexagonal
Orthorhombic
Birefringence
0.012-0.025
0.007-0.010
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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Cancrinite Vs Alexandrite Fracture
Fracture is an important parameter when you compare Cancrinite and Alexandrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Cancrinite 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 Cancrinite is Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Irregular/uneven.
Cancrinite Vs Alexandrite Luster
A primary knowledge about Cancrinite 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. Cancrinite exhibits Greasy, Pearly and Vitreous luster. Alexandrite, on other hand, exhibits Vitreous luster.