Alexandrite Vs Hurlbutite
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
Colorless, Greenish, White, Yellow
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
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Energy
Projective, Receptive
Not Available
Deities
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Not to wear with
Not Available
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Powers
Love
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Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
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Solubility
Not Available
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Durability
Not Available
Not Available
Specific Gravity
3.69-3.81
2.90
Fracture
Not Available
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Chemical Composition
BeAl 2 O 4
CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Pleochroism
Not Available
Not Available
Dispersion
Not Available
Not Available
Transparency
Transparent, Transparent to nearly opaque
Transparent
Refractive Index
1.739-1.770
1.595-1.604
Optic Character
Biaxial/+
Not Available
Crystal System
Orthorhombic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Birefringence
0.007-0.010
0.009
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 Hurlbutite Fracture
Fracture is an important parameter when you compare Alexandrite and Hurlbutite Physical Properties. It is necessary to understand the significance of these properties, before you compare Alexandrite Vs Hurlbutite 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. Hurlbutite fracture is Brittle, Conchoidal, ConchoidalAnthony et al, ConchoidalAnthony et al, Handbook of mineralogy (2001) and Handbook of mineralogy (2001).
Alexandrite Vs Hurlbutite Luster
A primary knowledge about Alexandrite vs Hurlbutite 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. Hurlbutite, on other hand, exhibits Vitreous luster.