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
Mexico, Canada
Color
Yellow, Green, Blue, Blue, Green, White, Yellow, Green, Red, Blue, Green, Colorless, Yellow, Blue, Violet, pink, Brown
Colorless, White, Blue, Red, Reddish, Brownish
For which Rashi?
Gemini
Not Available
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
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
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Specific Gravity
3.16-3.23
1.993
Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal to uneven
Uneven, Brittle
Cleavage
[0001] indistinct, [1010] indistinct
Perfect on [100], [010], [001]
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Not Available
Pleochroism
Blue stones – strong
Visible in colored crystals
Transparency
Gemmological Tables (2004) More from other references
Not Available
Refractive Index
1.628-1.651
1.4903
Optic Character
Not Available
Not Available
Crystal System
Hexagonal
Isometric
Birefringence
0.002-0.008
Not Available
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Not Available
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 Sylvite Fracture
Fracture is an important parameter when you compare Apatite and Sylvite Physical Properties. It is necessary to understand the significance of these properties, before you compare Apatite Vs Sylvite 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. Sylvite fracture is Brittle and Uneven.
Apatite Vs Sylvite Luster
A primary knowledge about Apatite vs Sylvite 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. Sylvite, on other hand, exhibits Vitreous luster.