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
Black, Blue, Yellow, Green
Streak
White
Grey, Greenish, Brown
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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Brittle
Solubility
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Durability
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Specific Gravity
3.16-3.23
3.28-3.44
Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Uneven, Splintery, Brittle
Cleavage
[0001] indistinct, [1010] indistinct
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
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Luster
Vitreous
Vitreous, Silky
Pleochroism
Blue stones – strong
X = blue
Transparency
Gemmological Tables (2004) More from other references
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Refractive Index
1.628-1.651
1.680-1.698
Optic Character
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Crystal System
Hexagonal
monoclinic
Birefringence
0.002-0.008
0.005-0.008
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
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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 Riebeckite Fracture
Fracture is an important parameter when you compare Apatite and Riebeckite Physical Properties. It is necessary to understand the significance of these properties, before you compare Apatite Vs Riebeckite 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. Riebeckite fracture is Brittle, Splintery and Uneven.
Apatite Vs Riebeckite Luster
A primary knowledge about Apatite vs Riebeckite 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. Riebeckite, on other hand, exhibits Silky and Vitreous luster.