Apatite Vs Alexandrite
Origin
Mexico, USA, Canada, Madagascar, Spain, Russia, Sri Lanka, India, Burma, Origins: Mexico
Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma, India, Origins: Russia
Color
Yellow, Green, Blue, White, Red, Colorless, Violet, pink, Brown
Green
Streak
White
Not Available
For which Rashi?
Gemini
Scorpio
Element of Planets
Earth
Earth
Energy
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Jupiter/Neptune
Not Available
Not to wear with
Not Available
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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
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.16-3.23
3.69-3.81
Fracture
Conchoidal, Uneven, Conchoidal to uneven
Not Available
Cleavage
[0001] indistinct, [1010] indistinct
1,1 ; 3,2.
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
BeAl 2 O 4
Pleochroism
Blue stones – strong
Not Available
Transparency
Not Available
Transparent, Transparent to nearly opaque
Refractive Index
1.628-1.651
1.739-1.770
Optic Character
Not Available
Biaxial/+
Crystal System
Hexagonal
Orthorhombic
Birefringence
0.002-0.008
0.007-0.010
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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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Apatite Vs Alexandrite Fracture
Fracture is an important parameter when you compare Apatite and Alexandrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Apatite 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 Apatite is Conchoidal, Uneven and Conchoidal to uneven.
Apatite Vs Alexandrite Luster
A primary knowledge about Apatite 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. Apatite exhibits Vitreous luster. Alexandrite, on other hand, exhibits Vitreous luster.
