Origin
Switzerland
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, Yellow, Blue, Reddish, Black, Reddish, Brown, Blue, gray, Black, Reddish, Brown, Blue, gray
Green
Streak
White
Not Available
For which Rashi?
Not Available
Scorpio
Planet
Not Available
Venus
Element of Planets
Not Available
Earth
Finger
Not Available
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Ring Metal
Not Available
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Energy
Not Available
Projective, Receptive
Deities
Not Available
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Not to wear with
Not Available
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Powers
Not Available
Love
Planetary
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Talisman
Not Available
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Tenacity
Brittle
Not Available
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.82-3.97
3.69-3.81
Fracture
Subconchoidal, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
Not Available
Cleavage
Perfect on [001] and [011]
1,1 ; 3,2.
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
BeAl 2 O 4
Luster
Adamantine
Vitreous
Pleochroism
Weak
Not Available
Transparency
Transparent
Transparent, Transparent to nearly opaque
Refractive Index
2.488-2.562
1.739-1.770
Optic Character
Not Available
Biaxial/+
Crystal System
tetragonal
Orthorhombic
Birefringence
0.073
0.007-0.010
Clarity
Transparent
Transparent
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
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Reproductive
Not Available
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Digestive
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Psychology
Not Available
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Healing
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Qualities Associated
Not Available
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Anatase Vs Alexandrite Fracture
Fracture is an important parameter when you compare Anatase and Alexandrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Anatase 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 Anatase is Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Subconchoidal.
Anatase Vs Alexandrite Luster
A primary knowledge about Anatase 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. Anatase exhibits Adamantine luster. Alexandrite, on other hand, exhibits Vitreous luster.