Origin
Mexico, USA, Canada, Madagascar, Spain, Russia, Sri Lanka, India, Burma, Color: green, greenish yellow, blue, violet, Hardness: 5, Refractive index: 1.60 1.67, Density: 3.17 3.35, Chemical composition: Phosphate composition, Crystal structure: hexagonal, Lustre: vitreous, Origins: Mexico, USA, Canada, Madagascar, Spain, Russia, Sri Lanka, India, brown, green, Yellow, violet, brown, green, Yellow, violet
Canada, Southern and central Africa, Australia
Color
Yellow, Green, Blue, Blue, Green, White, Yellow, Green, Red, Blue, Green, Colorless, Yellow, Blue, Violet, pink, Brown
Colorless, White, Colorless, gray, White
For which Rashi?
Gemini
Not Available
Planet
Mercury
Not Available
Element of Planets
Earth
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Finger
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Ring Metal
Not Available
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Energy
Projective
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Deities
Jupiter/Neptune
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Not to wear with
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Powers
Healing
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Planetary
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Talisman
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Tenacity
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Brittle
Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.16-3.23
2.72-2.75
Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
[0001] indistinct, [1010] indistinct
Perfect on [001], good on [010], imperfect on [110]
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous, Pearly
Pleochroism
Blue stones – strong
colorless.
Transparency
Gemmological Tables (2004) More from other references
Transparent
Refractive Index
1.628-1.651
1.561-1.583
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Triclinic
Birefringence
0.002-0.008
0.010-0.011
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Healing
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Qualities Associated
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Apatite Vs Bytownite Fracture
Fracture is an important parameter when you compare Apatite and Bytownite Physical Properties. It is necessary to understand the significance of these properties, before you compare Apatite Vs Bytownite 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 Brittle, Conchoidal, Conchoidal, Conchoidal to uneven, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Bytownite fracture is Gems, Sixth Edition (2006), Uneven and Uneven.
Apatite Vs Bytownite Luster
A primary knowledge about Apatite vs Bytownite 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. Bytownite, on other hand, exhibits Pearly and Vitreous luster.