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
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Color
Yellow, Green, Blue, Blue, Green, White, Yellow, Green, Red, Blue, Green, Colorless, Yellow, Blue, Violet, pink, Brown
Yellow, Black
For which Rashi?
Gemini
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Planet
Mercury
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Element of Planets
Earth
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Finger
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Ring Metal
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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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Solubility
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Durability
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Specific Gravity
3.16-3.23
4.39
Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
ConchoidalGemdat.org, Uneven
Cleavage
[0001] indistinct, [1010] indistinct
{111} Indistinct, {111} Indistinct, {111} Indistinct
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Pleochroism
Blue stones – strong
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Transparency
Gemmological Tables (2004) More from other references
Translucent
Refractive Index
1.628-1.651
1.80-1.83
Optic Character
Not Available
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Crystal System
Hexagonal
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
Birefringence
0.002-0.008
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Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent
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 Hercynite Fracture
Fracture is an important parameter when you compare Apatite and Hercynite Physical Properties. It is necessary to understand the significance of these properties, before you compare Apatite Vs Hercynite 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. Hercynite fracture is ConchoidalGemdat.org and Uneven.
Apatite Vs Hercynite Luster
A primary knowledge about Apatite vs Hercynite 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. Hercynite, on other hand, exhibits Vitreous luster.